As an editor I want to be able to edit references in the Bridge in order to not have to switch context to Wikidata.

Problem:
The editor can edit the value in the Bridge now but if they need to edit the value they still have to jump to Wikidata (compare T240333). That's not great for encouraging more and correct references.

Screenshots/mockups:

BDD
GIVEN
AND
WHEN
AND
THEN
AND

Acceptance criteria:

Open questions: