[TASK] Doctrine: Migrate LiveSearch

Resolves: #77300
Releases: master
Change-Id: If7a43f26e8b4d7cf3550bc9a227b73ae85db4701
Reviewed-on: https://review.typo3.org/49262


Reviewed-by: Morton Jonuschat <m.jonuschat@mojocode.de>
Tested-by: Morton Jonuschat <m.jonuschat@mojocode.de>
Tested-by: Bamboo TYPO3com <info@typo3.com>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>
Reviewed-by: Benni Mack <benni@typo3.org>
Tested-by: Benni Mack <benni@typo3.org>