Feature/324 implement update locations
Addresses https://github.com/thoth-pub/thoth/issues/324
Known bug: When a user views a Canonical Location and exits the modal without making changes by clicking Cancel, X, or outside of the modal, and then opens the modal for another non-Canonical Location, the second Location will sometimes incorrectly display as Canonical: Yes in the modal.
If the user then returns to the Canonical Location without making changes to the second Location, the Canonical Location will sometimes incorrectly display Location Platform: Project MUSE.
In neither case does this affect the underlying values of the fields upon Save; if the user clicks Save when the values are displaying incorrectly, the correct, original values of the fields will be preserved.
This display issue has already been identified in several other parts of the view (see https://github.com/thoth-pub/thoth/issues/366).