Refactor calendar widget changes

assets/diary/diary-calendar.html

@@ -1,5 +1,5 @@
 <div class="diary-cal">
-  <div class="diary-cal-label"><a href="{{.DiaryURL}}">Chronological</a></div>
+  <div class="panel-header"><a href="{{.DiaryURL}}">Chronological</a></div>
   <div class="diary-cal-nav">
     <a href="{{.MonthURL}}" class="diary-cal-heading">{{.MonthName}}</a>
     <div class="dropdown diary-cal-drop">
@@ -26,3 +26,4 @@
     </tbody>
   </table>
 </div>
+<script src="/_/diary/diary-calendar.js"></script>