Styling fixes for tabs, collapsible search box, navbar updates

Packages/worklist/components/tabTitle/tabTitle.html

@@ -2,7 +2,7 @@
     <li role="presentation" class="tabTitle">
         <a data-target="#{{contentid}}" role="tab" data-toggle="tab">
             {{title}}
+            <button class="close">&times;</button>
         </a>
-        <a class="close">x</a>
     </li>
 </template>