Checklist

• I am using the latest version - x.xx.x
• I checked, but didn't find any duplicates (open OR closed) of this issue in the repo.
• I have read the contribution guidelines given at https://github.com/TeamNewPipe/NewPipe/blob/HEAD/.github/CONTRIBUTING.md.
• This issue contains only one bug. I will open one issue for every bug report I want to file.

Steps to reproduce the bug

1. Put the device on its side to horizontal/landscape mode
2. Turn on tablet mode
3. Disable "show next and similar videos"
4. Restart Newpipe
5. Open any youtube video
6. Tap the fullscreen button and play it in fullscreen
7. Tap the close fullscreen button again to close fullscreen

Actual behavior

Video will only cover left side of the screen, right side will be blank

Expected behavior

Video should cover entire top half of the screen (like "theatrical mode")

Logs

Device info

• Android version/Custom ROM version: MIUI 8.0 Oreo
• Device model: Huawei Mediapad M5 Lite