View control fixes

Fixes #2094
- Add position: relative to .view-control main class;
- Add correct classes to markup;
- Fix Sum Widget field size while I was in there;

platform/commonUI/general/res/sass/controls/_controls.scss

@@ -211,6 +211,7 @@ body.desktop .has-local-controls {
     cursor: pointer;
     height: 1em; width: 1em;
     line-height: inherit;
+    position: relative;
     &:before {
         position: absolute;
         @include trans-prop-nice(transform, 100ms);

platform/features/notebook/res/templates/notebook.html

@@ -109,7 +109,7 @@
                     </div>
                 </div>
                 <!-- delete entry -->
-                <div class="holder flex-elem local-control notebook-entry-delete">
+                <div class="holder flex-elem local-control local-controls-hidden notebook-entry-delete">
                     <a class="s-icon-button icon-trash" id={{entry.id}} title="Delete Entry" ng-click="deleteEntry($event)"></a>
                 </div>
             </li>