[Front-end] Tweaks

Fixes #1729
CSS and markup mods to convert
to flex from abs pos;

platform/commonUI/edit/res/templates/create/create-menu.html

@@ -19,8 +19,8 @@
  this source code distribution or the Licensing information page available
  at runtime from the About dialog for additional information.
 -->
-<div class="contents" ng-controller="CreateMenuController">
-    <div class="pane left menu-items">
+<div class="w-menu" ng-controller="CreateMenuController">
+    <div class="col menu-items">
         <ul>
             <li ng-repeat="createAction in createActions" ng-click="createAction.perform()">
                 <a ng-mouseover="representation.activeMetadata = createAction.getMetadata()"
@@ -31,7 +31,7 @@
             </li>
         </ul>
     </div>
-    <div class="pane right menu-item-description">
+    <div class="col menu-item-description">
         <div class="desc-area icon {{ representation.activeMetadata.cssClass }}"></div>
         <div class="desc-area title">
             {{representation.activeMetadata.name}}