Mail popup: respect "remote inline images" prefs

Fixes #2417

UI/Templates/MailerUI/UIxMailPopupView.wox

@@ -7,6 +7,7 @@
     className="UIxPageFrame"
     title="title"
     const:jsFiles="SOGoAutoCompletion.js"
+    const:userDefaultsKeys="SOGoMailDisplayRemoteInlineImages"
     const:popup="YES">
   <script type="text/javascript">
     var messageName = '<var:string value="clientObject.relativeImap4Name"/>';

UI/WebServerResources/UIxMailPopupView.js

@@ -13,6 +13,9 @@ function initPopupMailer(event) {
     configureLoadImagesButton();
     configureSignatureFlagImage();
 
+    if (UserDefaults["SOGoMailDisplayRemoteInlineImages"] == 'always')
+        loadRemoteImages();
+
     window.messageUID = mailboxName + "/" + messageName;
 
     handleReturnReceipt();