Fix support for SOGoSieveFolderEncoding defaults

Fixed the following bugs in the mail filter editor:

1. Sieve folder encoding not respecting the SOGoSieveFolderEncoding
system defaults;
2. Conditions are still displayed when rule affects all messages;
3. Missing custom mail labels to "flag with" action.

UI/Templates/PreferencesUI/UIxFilterEditor.wox

@@ -26,7 +26,6 @@
     <md-dialog-content class="sg-has-form-sections">
       <script type="text/javascript">
         var filterId = '<var:string value="filterId"/>';
-        var sieveFolderEncoding = '<var:string value="sieveFolderEncoding"/>';
         var mailTags = <var:string value="labels" const:escapeHTML="NO"/>;
       </script>
 
@@ -51,7 +50,7 @@
         </div>
 
         <!-- CONDITIONS -->
-        <div layout="column">
+        <div layout="column" ng-hide="filterEditor.filter.match == 'allmessages'">
           <div id="filterRules"><!-- empty --></div>
           <div layout="row" layout-align="start center"
                ng-repeat="rule in filterEditor.filter.rules">
@@ -165,7 +164,7 @@
                 <md-option value="flagged"><var:string label:value="Flagged"/></md-option>
                 <md-option value="junk"><var:string label:value="Junk"/></md-option>
                 <md-option value="not_junk"><var:string label:value="Not Junk"/></md-option>
-                <md-option ng-value="key" ng-repeat="(key, value) in labels">{{ value[0] }}</md-option>
+                <md-option ng-value="key" ng-repeat="(key, value) in filterEditor.labels">{{ value[0] }}</md-option>
               </md-select>
             </md-input-container>
 

UI/Templates/PreferencesUI/UIxPreferences.wox

@@ -21,6 +21,7 @@
     var defaultEmailAddresses = '<var:string value="defaultEmailAddresses" const:escapeHTML="NO"/>';
     var forwardConstraints = <var:string value="forwardConstraints" const:escapeHTML="NO"/>;
     var sieveCapabilities = <var:string value="sieveCapabilities" const:escapeHTML="NO"/>;
+    var sieveFolderEncoding = <var:string value="sieveFolderEncoding.doubleQuotedString"/>;
   </script>
 
   <script type="text/ng-template" id="preferences.html">