[TASK] Make the extension standalone

Classes/Backend/Ajax.php

Classes/Controller/VimeoController.php

Classes/Form/Element/LicenceStatus.php

Classes/Hooks/LicenceCheckHook.php

Classes/Hooks/PageLayoutView/PluginRenderer.php

Classes/Preview/PreviewRenderer.php

Classes/Service/ExtensionSettingsService.php

Classes/Service/LicenceCheckService.php

Classes/ViewHelpers/RenderSvgViewHelper.php

Classes/ViewHelpers/StructuredVideoDataViewHelper.php

Configuration/Backend/AjaxRoutes.php

Configuration/FlexForms/flexform_sgvimeo_vimeo.xml

Configuration/Services.yaml

Resources/Private/Language/de.locallang.xlf

Resources/Private/Language/locallang.xlf

Resources/Private/Layouts/Default.html

Resources/Private/Templates/Vimeo/Index.html

Resources/Public/Icons/solid-chevron-down.svg

Resources/Public/Icons/solid-play.svg

Resources/Public/JavaScript/Backend/LicenseNotification.js