[Timelines] #677 Applied fix to prevent editing of timelines in browse mode

Fixed failing test

platform/commonUI/edit/src/representers/EditRepresenter.js

@@ -109,6 +109,8 @@ define(
             // Track the represented object
             this.domainObject = representedObject;
 
+            this.scope.isEditable = representedObject.getCapability('status').get('editing');
+
             // Ensure existing watches are released
             this.destroy();
         };