XWIKI-7220: Remove leftover references to the old Main.Dashboard

+ removed unneeded dependency of Annotations and Repository apps on the Dashboard app

xwiki-platform-core/xwiki-platform-annotations/xwiki-platform-annotation-ui/src/main/resources/AnnotationCode/WebHome.xml

@@ -43,7 +43,5 @@
   <minorEdit>false</minorEdit>
   <syntaxId>xwiki/2.0</syntaxId>
   <hidden>true</hidden>
-  <content>This is the space for the Annotations scripts, powering the annotation feature.
-
-{{include document="Main.Dashboard" /}}</content>
+  <content>This is the space for the Annotations scripts, powering the annotation feature.</content>
 </xwikidoc>

xwiki-platform-core/xwiki-platform-repository/xwiki-platform-repository-server-ui/src/main/resources/ExtensionCode/WebHome.xml

@@ -23,5 +23,5 @@
   <minorEdit>false</minorEdit>
   <syntaxId>xwiki/2.0</syntaxId>
   <hidden>true</hidden>
-  <content>{{include document="Main.Dashboard"/}}</content>
+  <content>This is the space for the Extension Repository scripts.</content>
 </xwikidoc>

xwiki-platform-core/xwiki-platform-web/src/main/webapp/resources/js/xwiki/xwikiexplorer/xwikiexplorer.js

@@ -1038,7 +1038,7 @@ isc.XWETreeGrid.addMethods({
     /**
      * Create a text input that will be used as a suggest for the tree.
      * The modifications on this input will be observed and the resource entered in the input,
-     * like Main.Dashboard for example, will be opened in the tree.
+     * like Dashboard.WebHome for example, will be opened in the tree.
      */
     drawInput : function() {
         var widthWithoutBorders = this.width - 6;