[TASK] CGL, switch(): Indent "case" correctly; no "break" in default

* "case" needs to be indented one level more than switch().
* default-case should not have a break-statement

Change-Id: I8215ba2bdb19b9abbfe6ed45af3905d7e6c688d6
Resolves: #49527
Releases: 6.2
Reviewed-on: https://review.typo3.org/21748
Reviewed-by: Markus Klein
Tested-by: Markus Klein