Merge remote-tracking branch 'performance-ce/MC-19246' into MC-19242

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

Author: adifucan

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

@@ -25,7 +25,8 @@ var config = {
         'MutationObserver': ['es6-collections'],
         'matchMedia': {
             'exports': 'mediaCheck'
-        }
+        },
+        'magnifier/magnifier': ['jquery']
     },
     'paths': {
         'jquery/validate': 'jquery/jquery.validate',

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

@@ -44,7 +44,7 @@ var config = {
             'Magento_Theme/js/view/breadcrumbs': {
                 'Magento_Theme/js/view/add-home-breadcrumb': true
             },
-            'jquery/jquery-ui': {
+            'jquery/ui-modules/dialog': {
                 'jquery/patches/jquery-ui': true
             }
         }

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

@@ -4,7 +4,9 @@
  */
 
 define([
-    'jquery'
+    'jquery',
+    'jquery-ui-modules/widget'
+    // 'jquery-ui-modules/dialog' - do not enable this dependency because this is already a mixin for the dialog ui component
 ], function ($) {
     'use strict';