Removed methods:
* \TYPO3\CMS\Backend\Utility\BackendUtility::getThumbnailUrl
* \TYPO3\CMS\Backend\Utility\BackendUtility::ADMCMD_previewCmds
* \TYPO3\CMS\Backend\Utility\BackendUtility::getPreviewUrl
* \TYPO3\CMS\Backend\Utility\BackendUtility::getLinkToDataHandlerAction
* \TYPO3\CMS\Core\Domain\Repository\PageRepository->getExtURL

Hooks:
* $GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['t3lib/class.t3lib_befunc.php']['viewOnClickClass']

Resolves: #101010
Related: #100963
Related: #100597
Related: #97544
Related: #99558
Releases: main
Change-Id: I96d2f4e1006ca0f741f17d977aac779f767f1127
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/79272


Tested-by: Anja Leichsenring <aleichsenring@ab-softlab.de>
Tested-by: core-ci <typo3@b13.com>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>
Reviewed-by: Thomas Hohn <tho@gyldendal.dk>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Reviewed-by: Anja Leichsenring <aleichsenring@ab-softlab.de>