[!!!][TASK] Fluidification of EditFileController

Resolves: #78759
Releases: master
Change-Id: I2ba72aeda6d56610cc4977f222abe26d124b7f15
Reviewed-on: https://review.typo3.org/50722


Reviewed-by: Gleb Levitin <gleb.levitin@dkd.de>
Tested-by: Gleb Levitin <gleb.levitin@dkd.de>
Tested-by: TYPO3com <no-reply@typo3.com>
Reviewed-by: Jan Helke <typo3@helke.de>
Tested-by: Jan Helke <typo3@helke.de>
Reviewed-by: Anja Leichsenring <aleichsenring@ab-softlab.de>
Tested-by: Anja Leichsenring <aleichsenring@ab-softlab.de>