diff --git a/QtHtmlEditor.pro.user b/QtHtmlEditor.pro.user
deleted file mode 100644
index d73e0fa..0000000
--- a/QtHtmlEditor.pro.user
+++ /dev/null
@@ -1,261 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE QtCreatorProject>
-<!-- Written by QtCreator 11.0.3, 2023-11-20T14:40:36. -->
-<qtcreator>
- <data>
-  <variable>EnvironmentId</variable>
-  <value type="QByteArray">{1988a14f-ea96-4f6c-ac0c-08d49440a8e5}</value>
- </data>
- <data>
-  <variable>ProjectExplorer.Project.ActiveTarget</variable>
-  <value type="qlonglong">0</value>
- </data>
- <data>
-  <variable>ProjectExplorer.Project.EditorSettings</variable>
-  <valuemap type="QVariantMap">
-   <value type="bool" key="EditorConfiguration.AutoIndent">true</value>
-   <value type="bool" key="EditorConfiguration.AutoSpacesForTabs">false</value>
-   <value type="bool" key="EditorConfiguration.CamelCaseNavigation">true</value>
-   <valuemap type="QVariantMap" key="EditorConfiguration.CodeStyle.0">
-    <value type="QString" key="language">Cpp</value>
-    <valuemap type="QVariantMap" key="value">
-     <value type="QByteArray" key="CurrentPreferences">CppGlobal</value>
-    </valuemap>
-   </valuemap>
-   <valuemap type="QVariantMap" key="EditorConfiguration.CodeStyle.1">
-    <value type="QString" key="language">QmlJS</value>
-    <valuemap type="QVariantMap" key="value">
-     <value type="QByteArray" key="CurrentPreferences">QmlJSGlobal</value>
-    </valuemap>
-   </valuemap>
-   <value type="qlonglong" key="EditorConfiguration.CodeStyle.Count">2</value>
-   <value type="QByteArray" key="EditorConfiguration.Codec">UTF-8</value>
-   <value type="bool" key="EditorConfiguration.ConstrainTooltips">false</value>
-   <value type="int" key="EditorConfiguration.IndentSize">4</value>
-   <value type="bool" key="EditorConfiguration.KeyboardTooltips">false</value>
-   <value type="int" key="EditorConfiguration.MarginColumn">80</value>
-   <value type="bool" key="EditorConfiguration.MouseHiding">true</value>
-   <value type="bool" key="EditorConfiguration.MouseNavigation">true</value>
-   <value type="int" key="EditorConfiguration.PaddingMode">1</value>
-   <value type="bool" key="EditorConfiguration.PreferSingleLineComments">false</value>
-   <value type="bool" key="EditorConfiguration.ScrollWheelZooming">true</value>
-   <value type="bool" key="EditorConfiguration.ShowMargin">false</value>
-   <value type="int" key="EditorConfiguration.SmartBackspaceBehavior">0</value>
-   <value type="bool" key="EditorConfiguration.SmartSelectionChanging">true</value>
-   <value type="bool" key="EditorConfiguration.SpacesForTabs">true</value>
-   <value type="int" key="EditorConfiguration.TabKeyBehavior">0</value>
-   <value type="int" key="EditorConfiguration.TabSize">8</value>
-   <value type="bool" key="EditorConfiguration.UseGlobal">true</value>
-   <value type="bool" key="EditorConfiguration.UseIndenter">false</value>
-   <value type="int" key="EditorConfiguration.Utf8BomBehavior">1</value>
-   <value type="bool" key="EditorConfiguration.addFinalNewLine">true</value>
-   <value type="bool" key="EditorConfiguration.cleanIndentation">true</value>
-   <value type="bool" key="EditorConfiguration.cleanWhitespace">true</value>
-   <value type="QString" key="EditorConfiguration.ignoreFileTypes">*.md, *.MD, Makefile</value>
-   <value type="bool" key="EditorConfiguration.inEntireDocument">false</value>
-   <value type="bool" key="EditorConfiguration.skipTrailingWhitespace">true</value>
-   <value type="bool" key="EditorConfiguration.tintMarginArea">true</value>
-  </valuemap>
- </data>
- <data>
-  <variable>ProjectExplorer.Project.PluginSettings</variable>
-  <valuemap type="QVariantMap">
-   <valuemap type="QVariantMap" key="AutoTest.ActiveFrameworks">
-    <value type="bool" key="AutoTest.Framework.Boost">true</value>
-    <value type="bool" key="AutoTest.Framework.CTest">false</value>
-    <value type="bool" key="AutoTest.Framework.Catch">true</value>
-    <value type="bool" key="AutoTest.Framework.GTest">true</value>
-    <value type="bool" key="AutoTest.Framework.QtQuickTest">true</value>
-    <value type="bool" key="AutoTest.Framework.QtTest">true</value>
-   </valuemap>
-   <valuemap type="QVariantMap" key="AutoTest.CheckStates"/>
-   <value type="int" key="AutoTest.RunAfterBuild">0</value>
-   <value type="bool" key="AutoTest.UseGlobal">true</value>
-   <valuemap type="QVariantMap" key="ClangTools">
-    <value type="bool" key="ClangTools.AnalyzeOpenFiles">true</value>
-    <value type="bool" key="ClangTools.BuildBeforeAnalysis">true</value>
-    <value type="QString" key="ClangTools.DiagnosticConfig">Builtin.DefaultTidyAndClazy</value>
-    <value type="int" key="ClangTools.ParallelJobs">4</value>
-    <value type="bool" key="ClangTools.PreferConfigFile">true</value>
-    <valuelist type="QVariantList" key="ClangTools.SelectedDirs"/>
-    <valuelist type="QVariantList" key="ClangTools.SelectedFiles"/>
-    <valuelist type="QVariantList" key="ClangTools.SuppressedDiagnostics"/>
-    <value type="bool" key="ClangTools.UseGlobalSettings">true</value>
-   </valuemap>
-  </valuemap>
- </data>
- <data>
-  <variable>ProjectExplorer.Project.Target.0</variable>
-  <valuemap type="QVariantMap">
-   <value type="QString" key="DeviceType">Desktop</value>
-   <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Desktop Qt 6.6.0 MSVC2019 64bit</value>
-   <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName">Desktop Qt 6.6.0 MSVC2019 64bit</value>
-   <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">qt.qt6.660.win64_msvc2019_64_kit</value>
-   <value type="qlonglong" key="ProjectExplorer.Target.ActiveBuildConfiguration">0</value>
-   <value type="qlonglong" key="ProjectExplorer.Target.ActiveDeployConfiguration">0</value>
-   <value type="qlonglong" key="ProjectExplorer.Target.ActiveRunConfiguration">0</value>
-   <valuemap type="QVariantMap" key="ProjectExplorer.Target.BuildConfiguration.0">
-    <value type="int" key="EnableQmlDebugging">0</value>
-    <value type="QString" key="ProjectExplorer.BuildConfiguration.BuildDirectory">E:\cpp\build-QtHtmlEditor-Desktop_Qt_6_6_0_MSVC2019_64bit-Debug</value>
-    <value type="QString" key="ProjectExplorer.BuildConfiguration.BuildDirectory.shadowDir">E:/cpp/build-QtHtmlEditor-Desktop_Qt_6_6_0_MSVC2019_64bit-Debug</value>
-    <valuemap type="QVariantMap" key="ProjectExplorer.BuildConfiguration.BuildStepList.0">
-     <valuemap type="QVariantMap" key="ProjectExplorer.BuildStepList.Step.0">
-      <value type="bool" key="ProjectExplorer.BuildStep.Enabled">true</value>
-      <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">QtProjectManager.QMakeBuildStep</value>
-      <value type="bool" key="QtProjectManager.QMakeBuildStep.QMakeForced">false</value>
-      <valuelist type="QVariantList" key="QtProjectManager.QMakeBuildStep.SelectedAbis"/>
-     </valuemap>
-     <valuemap type="QVariantMap" key="ProjectExplorer.BuildStepList.Step.1">
-      <value type="bool" key="ProjectExplorer.BuildStep.Enabled">true</value>
-      <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">Qt4ProjectManager.MakeStep</value>
-     </valuemap>
-     <value type="qlonglong" key="ProjectExplorer.BuildStepList.StepsCount">2</value>
-     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Build</value>
-     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName">Build</value>
-     <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.BuildSteps.Build</value>
-    </valuemap>
-    <valuemap type="QVariantMap" key="ProjectExplorer.BuildConfiguration.BuildStepList.1">
-     <valuemap type="QVariantMap" key="ProjectExplorer.BuildStepList.Step.0">
-      <value type="bool" key="ProjectExplorer.BuildStep.Enabled">true</value>
-      <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">Qt4ProjectManager.MakeStep</value>
-      <value type="QString" key="Qt4ProjectManager.MakeStep.MakeArguments">clean</value>
-     </valuemap>
-     <value type="qlonglong" key="ProjectExplorer.BuildStepList.StepsCount">1</value>
-     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Clean</value>
-     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName">Clean</value>
-     <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.BuildSteps.Clean</value>
-    </valuemap>
-    <value type="int" key="ProjectExplorer.BuildConfiguration.BuildStepListCount">2</value>
-    <value type="bool" key="ProjectExplorer.BuildConfiguration.ClearSystemEnvironment">false</value>
-    <valuelist type="QVariantList" key="ProjectExplorer.BuildConfiguration.CustomParsers"/>
-    <value type="bool" key="ProjectExplorer.BuildConfiguration.ParseStandardOutput">false</value>
-    <valuelist type="QVariantList" key="ProjectExplorer.BuildConfiguration.UserEnvironmentChanges"/>
-    <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName">Debug</value>
-    <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">Qt4ProjectManager.Qt4BuildConfiguration</value>
-    <value type="int" key="Qt4ProjectManager.Qt4BuildConfiguration.BuildConfiguration">2</value>
-   </valuemap>
-   <valuemap type="QVariantMap" key="ProjectExplorer.Target.BuildConfiguration.1">
-    <value type="QString" key="ProjectExplorer.BuildConfiguration.BuildDirectory">E:\cpp\build-QtHtmlEditor-Desktop_Qt_6_6_0_MSVC2019_64bit-Release</value>
-    <value type="QString" key="ProjectExplorer.BuildConfiguration.BuildDirectory.shadowDir">E:/cpp/build-QtHtmlEditor-Desktop_Qt_6_6_0_MSVC2019_64bit-Release</value>
-    <valuemap type="QVariantMap" key="ProjectExplorer.BuildConfiguration.BuildStepList.0">
-     <valuemap type="QVariantMap" key="ProjectExplorer.BuildStepList.Step.0">
-      <value type="bool" key="ProjectExplorer.BuildStep.Enabled">true</value>
-      <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">QtProjectManager.QMakeBuildStep</value>
-      <value type="bool" key="QtProjectManager.QMakeBuildStep.QMakeForced">false</value>
-      <valuelist type="QVariantList" key="QtProjectManager.QMakeBuildStep.SelectedAbis"/>
-     </valuemap>
-     <valuemap type="QVariantMap" key="ProjectExplorer.BuildStepList.Step.1">
-      <value type="bool" key="ProjectExplorer.BuildStep.Enabled">true</value>
-      <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">Qt4ProjectManager.MakeStep</value>
-     </valuemap>
-     <value type="qlonglong" key="ProjectExplorer.BuildStepList.StepsCount">2</value>
-     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Build</value>
-     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName">Build</value>
-     <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.BuildSteps.Build</value>
-    </valuemap>
-    <valuemap type="QVariantMap" key="ProjectExplorer.BuildConfiguration.BuildStepList.1">
-     <valuemap type="QVariantMap" key="ProjectExplorer.BuildStepList.Step.0">
-      <value type="bool" key="ProjectExplorer.BuildStep.Enabled">true</value>
-      <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">Qt4ProjectManager.MakeStep</value>
-      <value type="QString" key="Qt4ProjectManager.MakeStep.MakeArguments">clean</value>
-     </valuemap>
-     <value type="qlonglong" key="ProjectExplorer.BuildStepList.StepsCount">1</value>
-     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Clean</value>
-     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName">Clean</value>
-     <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.BuildSteps.Clean</value>
-    </valuemap>
-    <value type="int" key="ProjectExplorer.BuildConfiguration.BuildStepListCount">2</value>
-    <value type="bool" key="ProjectExplorer.BuildConfiguration.ClearSystemEnvironment">false</value>
-    <valuelist type="QVariantList" key="ProjectExplorer.BuildConfiguration.CustomParsers"/>
-    <value type="bool" key="ProjectExplorer.BuildConfiguration.ParseStandardOutput">false</value>
-    <valuelist type="QVariantList" key="ProjectExplorer.BuildConfiguration.UserEnvironmentChanges"/>
-    <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName">Release</value>
-    <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">Qt4ProjectManager.Qt4BuildConfiguration</value>
-    <value type="int" key="Qt4ProjectManager.Qt4BuildConfiguration.BuildConfiguration">0</value>
-    <value type="int" key="QtQuickCompiler">0</value>
-   </valuemap>
-   <valuemap type="QVariantMap" key="ProjectExplorer.Target.BuildConfiguration.2">
-    <value type="int" key="EnableQmlDebugging">0</value>
-    <value type="QString" key="ProjectExplorer.BuildConfiguration.BuildDirectory">E:\cpp\build-QtHtmlEditor-Desktop_Qt_6_6_0_MSVC2019_64bit-Profile</value>
-    <value type="QString" key="ProjectExplorer.BuildConfiguration.BuildDirectory.shadowDir">E:/cpp/build-QtHtmlEditor-Desktop_Qt_6_6_0_MSVC2019_64bit-Profile</value>
-    <valuemap type="QVariantMap" key="ProjectExplorer.BuildConfiguration.BuildStepList.0">
-     <valuemap type="QVariantMap" key="ProjectExplorer.BuildStepList.Step.0">
-      <value type="bool" key="ProjectExplorer.BuildStep.Enabled">true</value>
-      <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">QtProjectManager.QMakeBuildStep</value>
-      <value type="bool" key="QtProjectManager.QMakeBuildStep.QMakeForced">false</value>
-      <valuelist type="QVariantList" key="QtProjectManager.QMakeBuildStep.SelectedAbis"/>
-     </valuemap>
-     <valuemap type="QVariantMap" key="ProjectExplorer.BuildStepList.Step.1">
-      <value type="bool" key="ProjectExplorer.BuildStep.Enabled">true</value>
-      <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">Qt4ProjectManager.MakeStep</value>
-     </valuemap>
-     <value type="qlonglong" key="ProjectExplorer.BuildStepList.StepsCount">2</value>
-     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Build</value>
-     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName">Build</value>
-     <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.BuildSteps.Build</value>
-    </valuemap>
-    <valuemap type="QVariantMap" key="ProjectExplorer.BuildConfiguration.BuildStepList.1">
-     <valuemap type="QVariantMap" key="ProjectExplorer.BuildStepList.Step.0">
-      <value type="bool" key="ProjectExplorer.BuildStep.Enabled">true</value>
-      <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">Qt4ProjectManager.MakeStep</value>
-      <value type="QString" key="Qt4ProjectManager.MakeStep.MakeArguments">clean</value>
-     </valuemap>
-     <value type="qlonglong" key="ProjectExplorer.BuildStepList.StepsCount">1</value>
-     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Clean</value>
-     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName">Clean</value>
-     <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.BuildSteps.Clean</value>
-    </valuemap>
-    <value type="int" key="ProjectExplorer.BuildConfiguration.BuildStepListCount">2</value>
-    <value type="bool" key="ProjectExplorer.BuildConfiguration.ClearSystemEnvironment">false</value>
-    <valuelist type="QVariantList" key="ProjectExplorer.BuildConfiguration.CustomParsers"/>
-    <value type="bool" key="ProjectExplorer.BuildConfiguration.ParseStandardOutput">false</value>
-    <valuelist type="QVariantList" key="ProjectExplorer.BuildConfiguration.UserEnvironmentChanges"/>
-    <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName">Profile</value>
-    <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">Qt4ProjectManager.Qt4BuildConfiguration</value>
-    <value type="int" key="Qt4ProjectManager.Qt4BuildConfiguration.BuildConfiguration">0</value>
-    <value type="int" key="QtQuickCompiler">0</value>
-    <value type="int" key="SeparateDebugInfo">0</value>
-   </valuemap>
-   <value type="qlonglong" key="ProjectExplorer.Target.BuildConfigurationCount">3</value>
-   <valuemap type="QVariantMap" key="ProjectExplorer.Target.DeployConfiguration.0">
-    <valuemap type="QVariantMap" key="ProjectExplorer.BuildConfiguration.BuildStepList.0">
-     <value type="qlonglong" key="ProjectExplorer.BuildStepList.StepsCount">0</value>
-     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Deploy</value>
-     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName">Deploy</value>
-     <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.BuildSteps.Deploy</value>
-    </valuemap>
-    <value type="int" key="ProjectExplorer.BuildConfiguration.BuildStepListCount">1</value>
-    <valuemap type="QVariantMap" key="ProjectExplorer.DeployConfiguration.CustomData"/>
-    <value type="bool" key="ProjectExplorer.DeployConfiguration.CustomDataEnabled">false</value>
-    <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.DefaultDeployConfiguration</value>
-   </valuemap>
-   <value type="qlonglong" key="ProjectExplorer.Target.DeployConfigurationCount">1</value>
-   <valuemap type="QVariantMap" key="ProjectExplorer.Target.RunConfiguration.0">
-    <value type="bool" key="Analyzer.Perf.Settings.UseGlobalSettings">true</value>
-    <value type="bool" key="Analyzer.QmlProfiler.Settings.UseGlobalSettings">true</value>
-    <value type="bool" key="Analyzer.Valgrind.Settings.UseGlobalSettings">true</value>
-    <valuelist type="QVariantList" key="CustomOutputParsers"/>
-    <value type="int" key="PE.EnvironmentAspect.Base">2</value>
-    <valuelist type="QVariantList" key="PE.EnvironmentAspect.Changes"/>
-    <value type="bool" key="PE.EnvironmentAspect.PrintOnRun">false</value>
-    <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.CustomExecutableRunConfiguration</value>
-    <value type="QString" key="ProjectExplorer.RunConfiguration.BuildKey"></value>
-    <value type="bool" key="RunConfiguration.UseCppDebuggerAuto">true</value>
-    <value type="bool" key="RunConfiguration.UseQmlDebuggerAuto">true</value>
-   </valuemap>
-   <value type="qlonglong" key="ProjectExplorer.Target.RunConfigurationCount">1</value>
-  </valuemap>
- </data>
- <data>
-  <variable>ProjectExplorer.Project.TargetCount</variable>
-  <value type="qlonglong">1</value>
- </data>
- <data>
-  <variable>ProjectExplorer.Project.Updater.FileVersion</variable>
-  <value type="int">22</value>
- </data>
- <data>
-  <variable>Version</variable>
-  <value type="int">22</value>
- </data>
-</qtcreator>