Issue #3172430 by sasanikolic, adriancid, valen0797: Hide the navigation menu on mobile properly

      });

      // Always hide the dropdown menu on mobile.

      if ($('body:not(.toolbar-fixed) #toolbar-item-administration-tray').hasClass('toolbar-tray-vertical')) {

      if (window.matchMedia("(max-width: 767px)").matches && $('body').hasClass('toolbar-tray-open')) {

        $('body').removeClass('toolbar-tray-open');

        $('#toolbar-item-administration').removeClass('is-active');

        $('#toolbar-item-administration-tray').removeClass('is-active');

      };