Search bar becomes too small with super theater mode and always visible combined

[ParticleCore]

To prevent the top search bar from covering the chat top bar, the extension automatically resizes it. This resizing is based on the player width, but if the player is in always visible mode the top bar becomes just as small.

The fix will be to simply use the size of the player container that stays in place instead of the player that switches to mini mode.

[ParticleCore]

closed in f91901d