Faceted search. Show all the filters after the results on a mobile device.
JIRA DIGIPAL-531: Sephardipal: remove the content of the frame from the thumbnail. Added a hidden field to the allograph model. This is needed to hide the pseudo-allograph used only to mask the content of a frame. This field is now used to hide hidden allographs from the web site (search results, annotation lists, annotator) when the user is not logged in.