Adding a book doesn't refresh book list or author list

[phildenhoff]

If I add a new book, and create a new author in the process, I don't see the book in my list (and there's no way to update it).

If I add a second book in the same session, that recently-created author is not available as a drop-down option.

[phildenhoff]

This now works, after building a small event system 🫡