[BUGFIX] Fix spelling errors in ext:frontend

Resolves: #90586
Releases: master
Change-Id: I229984ae44b0bc20dca1bbc919d7815e782c8db1
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/63492


Tested-by: Björn Jacob <bjoern.jacob@tritum.de>
Tested-by: Alexander Schnitzler <git@alexanderschnitzler.de>
Tested-by: TYPO3com <noreply@typo3.com>
Tested-by: Susanne Moog <look@susi.dev>
Reviewed-by: Björn Jacob <bjoern.jacob@tritum.de>
Reviewed-by: Alexander Schnitzler <git@alexanderschnitzler.de>
Reviewed-by: Susanne Moog <look@susi.dev>