[TASK] Use tabs in record of sys_language

As every other record uses tabs, this concept should be brought to
"sys_language" as well. The field "hidden" is moved to the "access"-tab.

Resolves: #63637
Releases: master
Change-Id: I80c01595590140f788618f43fbf9944a78519750
Reviewed-on: http://review.typo3.org/35118
Reviewed-by: Mathias Schreiber <mathias.schreiber@wmdb.de>
Tested-by: Mathias Schreiber <mathias.schreiber@wmdb.de>
Reviewed-by: Stefan Neufeind <typo3.neufeind@speedpartner.de>
Tested-by: Stefan Neufeind <typo3.neufeind@speedpartner.de>