Merge pull request 'OZG-4994-5079-filters-anbinden' (#425) from...

Merge pull request 'OZG-4994-5079-filters-anbinden' (#425) from OZG-4994-5079-filters-anbinden into OZG-4994-ansicht-vorgaenge-mit-ungelesene-nachrichten

Reviewed-on: https://git.ozg-sh.de/ozgcloud-app/alfa/pulls/425