Fix missing dhtmlx menu object

api/js/egw_action/egw_menu.js

@@ -9,7 +9,7 @@
  *
  * @Todo: @new-js-loader port to TypeScript
  */
-
+import {egwMenuImpl} from './egw_menu_dhtmlx.js';
 //Global variable which is used to store the currently active menu so that it
 //may be closed when another menu openes
 export var _egw_active_menu = null;

api/js/egw_action/egw_menu_dhtmlx.js

@@ -23,7 +23,7 @@
  *
  * @param {type} _structure
  */
-function egwMenuImpl(_structure)
+export function egwMenuImpl(_structure)
 {
 	//Create a new dhtmlxmenu object
 	this.dhtmlxmenu = new dhtmlXMenuObject();