[BUGFIX] Allow setting categories containing spaces

Partly revert #89956 to reallow category titles in extension settings
which contain a space.

Resolves: #90776
Releases: master
Change-Id: I93358e1c10e502ba9c48402a78927e34c240215a
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/63764


Tested-by: Andreas Fernandez <a.fernandez@scripting-base.de>
Tested-by: TYPO3com <noreply@typo3.com>
Tested-by: Susanne Moog <look@susi.dev>
Reviewed-by: Andreas Fernandez <a.fernandez@scripting-base.de>
Reviewed-by: Oliver Bartsch <bo@cedev.de>
Reviewed-by: Susanne Moog <look@susi.dev>