MAGETWO-32234: Subcategories in menu are shown instantly when user moves mouse quickly

- Added delay config and fix

Author: Ihor Melnychenko

lib/web/mage/menu.js

@@ -349,11 +349,11 @@ define([
                 }, 300);
             }
         },
-        _delay: function( handler, delay ) {
+        _delay: function(handler, delay) {
             var instance = this,
                 handlerProxy = function () {
-                return ( typeof handler === "string" ? instance[ handler ] : handler )
-                    .apply( instance, arguments );
+                return (typeof handler === "string" ? instance[handler] : handler)
+                    .apply(instance, arguments);
             };
             return setTimeout( handlerProxy, delay || 0 );
         }