Arrow keys do not always flip pages

[qspitzer]

Thorium version: 2.3.0 (AppImage)

Expected behavior: Using keyboard arrow keys should always work to flip between pages

Actual behavior: After opening the "Information" tab/window in a book, keyboard arrows stop working (on screen arrows still work). Opening and closing either "settings" or "navigation" tabs restores functionality

Steps to reproduce:

1. Open .epub file (untested with other book formats)
2. Use keyboard arrow keys to flip pages
3. Open and close "information" tab
4. Keyboard arrow keys should no longer work
5. Open and close "settings" or "navigation"
6. Keyboard arrow keys should work again