Delete video/book

[avni]

Is your feature request related to a problem? Please describe.
I would like to be able to delete books/videos from an instance (I accidentally downloaded the same video 2 times into an instance and would like to delete one of them).

Describe the solution you'd like

1. Go to: http://box/books/ to see you list of books
2. Click on a book. An overlay pops up with details.
3. It would be nice to have a delete function (in addition to the archive function) available from this overlay.

UX: It could potentially be a red button, entitled, "Delete" in the lower left of the overlay.

Describe alternatives you've considered
Archiving removes content from the main calibre-web page, but if you make a mistake like I did and upload hte same video 2x, it would be good to be able to delete it completely. Alternatively/additionally, if calibre-web can detect that a video is a duplicate and not upload the second instance, that would be amazing!

Additional context
Screenshot showing 2 duplicate videos along with a 3rd unique video: