Merge forwardport of #12161 to 2.3-develop branch

Applied pull request patch https://github.com/magento/magento2/pull/12161.patch (created by @scazz010) based on commit(s):
  1. 6330103
  2. faa7129

Author: magento-engcom-team

lib/web/mage/menu.js

@@ -21,6 +21,7 @@ define([
             expanded: false,
             showDelay: 42,
             hideDelay: 300,
+            delay: 300,
             mediaBreakpoint: '(max-width: 768px)'
         },
 
@@ -30,6 +31,8 @@ define([
         _create: function () {
             var self = this;
 
+            this.delay = this.options.delay;
+
             this._super();
             $(window).on('resize', function () {
                 self.element.find('.submenu-reverse').removeClass('submenu-reverse');
@@ -586,7 +589,7 @@ define([
                 html.removeClass('nav-open');
                 setTimeout(function () {
                     html.removeClass('nav-before-open');
-                }, 300);
+                }, this.options.hideDelay);
             }
         },