Migration to add in new definite_antiquarian, definite_work and definite_book fields for links, with the former definite field values being assigned to the new definite_antiquarian field
All links now have symbols to represent whether they are definitely linked to the antiquarian/work/book
On Fragment/Testimonium: have organised links so they are grouped by antiquarian with all relevant links below
When removing links, one can remove a single link with the button next to the work/book link; if it is the last link for that antiquarian it will reassign itself to unknown work & book.
If the last link is unknown, the link must be removed from the button by the antiquarian, which removes all links between that antiquarian and the fragment/testimonium
It should not be possible to indicate that a link has a definite work/book if that work/book is unknown
New inline update form for links - book can be changed as well as definite statuses
Tests have been updated to reflect the new deletion behaviour expected as well as the different definite aspects and ensuring unknown works/books can't have definite links
Closes #379 Also related to #380
Things changed:
definite_antiquarian,definite_workanddefinite_bookfields for links, with the formerdefinitefield values being assigned to the newdefinite_antiquarianfieldOther updates: more relevant tab titles