[BUGFIX] BE-Module "Access": Fixed "weird" styling and behavior

During implementation of the ModuleTemplate API for ext:beuser,
the changes for the access module were only half done.

Resolves: #70724
Releases: master
Change-Id: Id6557576f9e78a30706e88e3ed170eae0d42cb78
Reviewed-on: http://review.typo3.org/44066


Reviewed-by: Michael Oehlhof <typo3@oehlhof.de>
Tested-by: Michael Oehlhof <typo3@oehlhof.de>
Reviewed-by: Markus Klein <markus.klein@typo3.org>
Tested-by: Markus Klein <markus.klein@typo3.org>