[MERGE] Branch 'master' of https://phabricator.glanzstueck.agency/source/typo3-template_aide

ext_tables.php

@@ -37,10 +37,12 @@ call_user_func(
                 'EXT:templates_aide/Resources/Public/Css/backend/production-stage';
         }
 
+        if (TYPO3_MODE == 'BE') {
             $pageRenderer = \TYPO3\CMS\Core\Utility\GeneralUtility::makeInstance(
                 \TYPO3\CMS\Core\Page\PageRenderer::class
             );
             $pageRenderer->loadRequireJsModule('TYPO3/CMS/TemplatesAide/NewContentElementWizardPreview');
+        }
 
     }
 );