AC-12726::[2.4.8-beta1] TinyMCE 5 migration to TinyMCE 7

Author: djadobe16

app/code/Magento/Cms/etc/adminhtml/di.xml

@@ -38,7 +38,7 @@
             <argument name="adapterOptions" xsi:type="array">
                 <item name="tinymce" xsi:type="array">
                     <item name="value" xsi:type="string">mage/adminhtml/wysiwyg/tiny_mce/tinymceAdapter</item>
-                    <item name="label" xsi:type="string" translatable="true">TinyMCE 5</item>
+                    <item name="label" xsi:type="string" translatable="true">TinyMCE 7</item>
                 </item>
             </argument>
         </arguments>

lib/web/mage/adminhtml/wysiwyg/tiny_mce/plugins/magentovariable/editor_plugin.js

@@ -13,8 +13,8 @@ define([
     'mage/adminhtml/tools'
 ], function (configDirectiveGenerator, customDirectiveGenerator, wysiwyg, jQuery) {
     return function (config) {
-        var self = null;
-        var magentovariable = function (editor) {
+        var self = null ,
+            magentovariable = function (editor) {
             this.widget = {
                 /**
                  * Encode variables in content
@@ -23,7 +23,7 @@ define([
                  * @returns {*}
                  */
                 encodeVariables: function (content) {
-                    content = content.gsub(/\{\{config path=\"([^\"]+)\"\}\}/i, function (match) {
+                    content = content.gsub(/\{\{config path="([^\"]+)"\}\}/i, function (match) {
                         var path = match[1],
                             magentoVariables,
                             imageHtml;
@@ -46,7 +46,7 @@ define([
                         return imageHtml.replace('%id', Base64.idEncode(path));
                     });
 
-                    content = content.gsub(/\{\{customVar code=([^\}\"]+)\}\}/i, function (match) {
+                    content = content.gsub(/\{\{customVar code=([^\}"]+)\}\}/i, function (match) {
                         var path = match[1],
                             magentoVariables,
                             imageHtml;

lib/web/mage/adminhtml/wysiwyg/tiny_mce/plugins/magentowidget/editor_plugin.js

@@ -11,8 +11,8 @@ define([
     'mage/adminhtml/wysiwyg/widget'
 ], function (wysiwyg, varienGlobalEvents) {
     return function (config) {
-        var self = null;
-        var magentowidget = function (editor) {
+        var self = null,
+            magentowidget = function (editor) {
             this.widget = {
                 /**
                  * @param {Object} placeholder - Contains the selected node