APD-482: Reset filters improvised
APD-482: removed reset code from filterWidget
APD-482: Removed comment from objectSearch.js
APD-482: Removed comments from statemanager.js
APD-482: Removed commented line from css
APD-482: Reset filters code merged
Merge branch 'develop' of https://github.com/Deutsche-Digitale-Bibliothek/apd into develop