Hide Funimation UI από Palle

The Funimation video UI does not hide itself when paused.

With this browser extension active, when watching a Funimation video, you can:
- Press 'z' to hide the video UI
- Use the up and down arrow keys or PgUp and PgDown to seek back and forward in 1 second increments. This has changed in version 2 to avoid conflicts with native controls in the new Funimation player.