Bug 1911358: Editing Dashboard produces a console error if inbox messages present

 - ajusted the way that jquery triggers pageupdated event

Change-Id: Iecb789ad73f76e3b2a9befdd0b6387f9ebd26efb
Signed-off-by: Lisa Seeto <lisaseeto@catalyst.net.nz>
(cherry picked from commit 7512d7fa)

htdocs/theme/raw/plugintype/blocktype/inbox/templates/inboxmr.tpl

@@ -62,6 +62,8 @@
     </div>
     {/if}
     <script>
-    jQuery(document).trigger('pageupdated');
+    jQuery(function() {
+        jQuery(document).trigger('pageupdated');
+    });
     </script>
 {/if}