[FEATURE] Make use of the ClassNamingUtility class

The Core got a new ClassNamingUtility, which provides a central place to
translate classnames. Extbase now uses this class in some places.

Resolves: #43836
Depends: #43052
Releases: 6.1
Change-Id: I29ae0215c403c7fb6456015ebf376b50919afb0f
Reviewed-on: https://review.typo3.org/17070
Reviewed-by: Markus Günther
Tested-by: Markus Günther
Reviewed-by: Andreas Wolf
Tested-by: Andreas Wolf