AMBARI-4508 clear indicator is showing thru actions menu. (ababiichuk)

ambari-web/app/styles/application.less

@@ -5323,7 +5323,7 @@ i.icon-asterisks {
   margin-left: 0;
 }
 #cleanerContainer {
-  z-index: 1000;
+  z-index: 2;
   position: absolute;
   left: -20px;
   width: 16px;