bulletin: fix configuration of default css path

Signed-off-by: Jiri Kuncar <jiri.kuncar@cern.ch>
WebSearch: fixtures for collection_field_fieldvalue

Signed-off-by: Eirini Psallida <eirini.psallida@cern.ch>
WebSearch: collection fixtures addition

Signed-off-by: Jiri Kuncar <jiri.kuncar@cern.ch>