Merge remote-tracking branch 'performance-ce/MC-19591' into MC-19587

# Conflicts:
#	app/code/Magento/Theme/view/base/requirejs-config.js

Author: adifucan

app/code/Magento/Theme/view/base/requirejs-config.js

@@ -29,7 +29,8 @@ var config = {
         },
         'matchMedia': {
             'exports': 'mediaCheck'
-        }
+        },
+        'magnifier/magnifier': ['jquery']
     },
     'paths': {
         'jquery/validate': 'jquery/jquery.validate',

lib/web/jquery/patches/jquery-ui.js

@@ -4,7 +4,8 @@
  */
 
 define([
-    'jquery'
+    'jquery',
+    'jquery/ui'
 ], function ($) {
     'use strict';