[BUGFIX] Consider all file mounts in folder search

FileStorageTreeProvider now considers all file
mounts, a user (non-admin) has access to, for the
file and folder search in the folder tree.

Resolves: #98423
Releases: main, 12.4
Change-Id: Id58665392b4351d0c5ecb46335097027f6bf139e
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/81072


Reviewed-by: Andreas Nedbal <andy@pixelde.su>
Tested-by: Oliver Bartsch <bo@cedev.de>
Tested-by: Andreas Nedbal <andy@pixelde.su>
Reviewed-by: Benni Mack <benni@typo3.org>
Tested-by: Stefan Bürk <stefan@buerk.tech>
Tested-by: Benni Mack <benni@typo3.org>
Tested-by: core-ci <typo3@b13.com>
Reviewed-by: Stefan Bürk <stefan@buerk.tech>
Reviewed-by: Oliver Bartsch <bo@cedev.de>