[BUGFIX] Fix spelling errors in ext:t3editor

Resolves: #90589
Releases: master
Change-Id: Iab632fcbb6366a3e7289341b5638789a8f3cf0df
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/63495


Tested-by: TYPO3com <noreply@typo3.com>
Tested-by: Susanne Moog <look@susi.dev>
Tested-by: Daniel Goerz <daniel.goerz@posteo.de>
Reviewed-by: Susanne Moog <look@susi.dev>
Reviewed-by: Daniel Goerz <daniel.goerz@posteo.de>