support for books

[foss-]

Is your feature request related to a problem? Please describe.
Using the books category for audio books. The individual books do show when selecting that category. When selecting a book the book shows along with a number in the top right indicating the number of tracks for that folder. But when clicking that entry, nothing happens.

Tracks can be selected ok in webUI + Jellyfin Media Player.

Describe the solution you'd like
A click on an individual book entry after selecting the artist should open the track view.

Additional context

In one example nothing happens, no error. Users remains on the artist page with the book showing and the number of tracks inidcated on the book cover.

In another case an actual error was shown: