[TASK] Fix common misspellings and typos

Resolves: #64051
Releases: master
Change-Id: I7a36da752fb72d30b5504003cc494feb835a8592
Reviewed-on: http://review.typo3.org/35661
Reviewed-by: Helmut Hummel <helmut.hummel@typo3.org>
Tested-by: Helmut Hummel <helmut.hummel@typo3.org>
Reviewed-by: Wouter Wolters <typo3@wouterwolters.nl>
Tested-by: Wouter Wolters <typo3@wouterwolters.nl>