Add a view-detail class (for more generic use)

Fix the regression (scroll) problem on contact editor

UI/Templates/MailerUI/UIxMailFolderTemplate.wox

@@ -40,7 +40,8 @@
       </md-item>
     </md-list>
   </md-content>
-
-    <div layout="column" ui-view="message" ng-animate="'view'"><!-- message view --></div>
+  <!-- This extra container is used to animate views transitions
+       double quotes in ng-animate is not a typo                         -->
+    <div class="view-detail" layout="column" ui-view="message" ng-animate="'view'"><!-- message view --></div>
 
 </container>