ACP2E-17: Front end CMS page text dissappears after pagebuilder update on backend

- Fix newline or other line terminators in widget content breaks pagebuilder preview and does not render on storefront

Author: bubasuma

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

@@ -142,7 +142,7 @@ define([
              * @return {*}
              */
             encodeWidgets: function (content) {
-                return content.gsub(/\{\{widget(.*?)\}\}/i, function (match) {
+                return content.gsub(/\{\{widget([\S\s]*?)\}\}/i, function (match) {
                     var attributes = wysiwyg.parseAttributesString(match[1]),
                         imageSrc,
                         imageHtml = '';