Fügt Unterstützung für Assembly-Filter in der Suche sowie ein neues Tab für Assemblies in der Filteransicht hinzu. Anpassungen beinhalten Änderungen an Datenbankabfragen, Formularen und Templates.
This fixes issue #701. For the search field this was caused by algolia/autocomplete lib, which do not support multiple autocomplete fields on a single page. If initailly loaded on the homepage, which features a second autocomplete, this one "steals" the input listening, and the one in the navbar do not close anymore when clicking outside.
Custom code which triggers the closing of the autocomplete manually when clicking outside, was added as a workaround.
