fix: more usable language in widget mode toggle label

Further iteration on advice from UX

CHANGELOG.md

@@ -16,8 +16,8 @@ and this project adheres to
 
 * Changed label on UI control for switching home page between expanded and
   compact widget modes, to make this feature more recognizable to and
-  understandable by users. New label is "Change widget display mode"; was
-  "Toggle expanded widgets". Also updates associated `aria-label`. #866
+  understandable by users. New label is "Change tile size"; was
+  "Toggle expanded widgets". Also updates the associated `aria-label`. #866
 
 ### Deprecated
 

web/src/main/webapp/my-app/menu/partials/app-menu-template.html

@@ -52,11 +52,11 @@
   <md-subheader ng-if="renderMe">{{ appTitle }} Home options</md-subheader>
   <md-menu-item ng-if="renderMe">
     <md-button
-      aria-label="Toggle between expanded and compact widget display modes"
+      aria-label="Toggle between small simple tiles and larger richer tiles"
       ng-controller="ToggleController"
       ng-click="toggleMode(expandedMode)">
       <md-icon>widgets</md-icon>
-      <span>Change widget display mode</span>
+      <span>Change tile size</span>
     </md-button>
   </md-menu-item>
 </div>