Problem: On a fresh Wikibase installation the web interface shows all the possible sitelink groups supported by Wikidata even if they don't work locally (by default they aren't enabled). Only locally enabled and fully functional sitelink groups should appear on the Wikibase web interface. The sitelink groups can be selectively enabled with $wgWBRepoSettings['siteLinkGroups'] (see https://www.mediawiki.org/wiki/Wikibase/Installation#Enable_Sitelinks).
Screenshots/mockups (current state):
- Only locally enabled and fully functional sitelink groups appear on the Wikibase web interface.