Merge branch 'upgrade_TYPO3v12_phase3' into 'master'

Classes/Controller/PluginController.php

Classes/DataProvider/AbstractBaseDataProvider.php

Classes/DataProvider/AbstractDataBaseDataProvider.php

Classes/DataProvider/ContentDataProvider.php

Classes/DataProvider/FactoryDataProvider.php

Classes/DataProvider/InterfaceDataProvider.php

Classes/DataProvider/PagesDataProvider.php

Classes/Domain/Model/Tab.php

Classes/Domain/Repository/TabRepository.php

...entListeners/PageContentPreviewRenderingEventListener.php

Classes/Exception/GenericException.php

Classes/Hooks/PageLayoutView/PluginRenderer.php

Classes/Preview/PreviewService.php

Classes/Service/ConfigurationService.php

Classes/Utility/ExtensionUtility.php

Classes/View/FluidView.php

Classes/View/TypoScriptView.php

Configuration/FlexForms/flexform.xml

Configuration/Icons.php

Configuration/Services.php