[TASK] Move changing preview processing config to processing service

Instead of complementing processing configuration in the file class,
move it to the processing service and LocalPreviewHelper class
to not have the code and logic duplicated and to ensure it is
always executed, not only when using the file API.

Resolves: #83421
Related: #81776
Related: #83242
Releases: master, 8.7, 7.6
Change-Id: I9b3f380625756137a56e7ad0ea55d21f47464ab8
Reviewed-on: https://review.typo3.org/55210


Tested-by: TYPO3com <no-reply@typo3.com>
Reviewed-by: Benni Mack <benni@typo3.org>
Tested-by: Benni Mack <benni@typo3.org>
Reviewed-by: Anja Leichsenring <aleichsenring@ab-softlab.de>
Tested-by: Anja Leichsenring <aleichsenring@ab-softlab.de>
Reviewed-by: Stefan Neufeind <typo3.neufeind@speedpartner.de>
Tested-by: Stefan Neufeind <typo3.neufeind@speedpartner.de>