Foreign key violation from digitization books and logo

[murny]

Seeing this in migrations:

Seems to be a similar issue with #3194 (comment)

The error makes sense 🤔 logo_id is a bigint column, but id in active_storage_attachments are UUIDs.

We seemed to have dropped the foreign key on Items and Thesis for a different reason here: #2335

But perhaps this is another example of just removing this code as mentioned in #3194 (comment), if we have no intention of maintaining it since it is causing little paper cuts.