Update notification dropdown not usable #11111 (#11202)

* Update notification dropdown not usable #11111

Patched

* modifed cursor on hover to make it appear not a link for the updated button (when update avalible)

plugins/Morpheus/stylesheets/uibase/_headerMessage.less

@@ -11,6 +11,7 @@
   &.update_available:not(.isPiwikDemo) .title {
     color: #CA8100;
     font-weight: bold;
+    cursor: default;
   }
 
   .icon-warning {
@@ -27,6 +28,9 @@
 
 #header_message .dropdown {
   font-size: 12px;
+  margin-top: 0px;
+  border-top:5px solid #edecec;
+  box-shadow: 8px 6px 7px 0px rgba(0, 0, 0, 0.3);
 }
 
 #header_message .header_short {