Exclude book type in list filter

Description of your request or bug report:

Just like how you can click a video genre checkbox twice to exclude it, the same should be possible for book types. I often want to look at novels, LNs, and children’s books as a single group, and it would be faster to click manga twice instead of clicking each of the other three checkboxes.

Trello link:

As a consequence of some cleanup I did for tags, this became very easy.

This is now complete! :slight_smile: