youtube-player

When I rotate a YouTube video and then press Fullscreen, the video gets cropped from top and bottom. Then I have to click rotate 4 times again for the video to uncrop.

Setup:

⚬ 'Improve YouTube!' (Video & YouTube Tools)🎧 Version 3.937
⚬ Browser: Opera
⚬ Settings: Attached (github not taking JSON file, so zip file attached)
⚬ OS: Windows 10 64-bit
⚬ Device: 4k monitor

Hi,
When I'm using playlist download feature, It's downloading songs I already have downloaded, so with 200 song
playlist it takes a long time. I would like to see a feature that downloads only song not existing it the chosen directory.

Describe the bug
The pin feature, which keeps the toolbar always on the window, is not working. Even when it's pinned, it's going away.

Steps to reproduce
Steps to reproduce the behavior:

1. Open a window and set toolbar to Pin
2. take curser off window
3. toolbar disappears.

Expected behavior
The toolbar should stay pinned

Screenshots
![image](https://user-images.