[BUGFIX] Correct wordings in Access Module

The wording of "1 levels" is corrected to "1 level".
"Set recursively 1 levels (N pages affected)" is also corrected.
"pages affected" has a singular-form as well now.

Resolves: #76541
Releases: master
Change-Id: Ie33a8caeb225fb259f892f6b115911dd62d675fe
Reviewed-on: https://review.typo3.org/48524


Reviewed-by: Wouter Wolters <typo3@wouterwolters.nl>
Tested-by: Wouter Wolters <typo3@wouterwolters.nl>
Tested-by: Riccardo De Contardi <erredeco@gmail.com>
Reviewed-by: Frank Naegler <frank.naegler@typo3.org>
Tested-by: Frank Naegler <frank.naegler@typo3.org>