[TASK] Adapt belog filter bar to twbs

Following beusers backend App the filter bar of belog is styled
and html markup following twbs.

Resolves: #64891
Releases: master
Change-Id: Ie0b3fa294621614d8ebc7859d3511f85f3b9981e
Reviewed-on: http://review.typo3.org/36692


Reviewed-by: Alexander Stehlik <alexander.stehlik@gmail.com>
Tested-by: Alexander Stehlik <alexander.stehlik@gmail.com>
Reviewed-by: Benjamin Kott <info@bk2k.info>
Tested-by: Benjamin Kott <info@bk2k.info>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>