What happened?
I tried to press ALT+back arrow key, and the video went back 10s
What do you expect to happen instead?
ALT+back arrow key should go back to the previous page in your browser, like any other websites (that i know).
ALT+forward arrow key should go the next page (if you already went back in browser history)
like these buttons
back arrow key without ALT should move the video backward
forward arrow without ALT key should move the video forward

Steps to reproduce:
a)

1. Go to the home page of any instance.

2. Click on a video and play it.

3. Press ALT+back arrow key.

you should be back to instance home page.

b)

1. make previous steps
2. press ALT+forward arrow key

you should be back to the video

Additional information

• PeerTube version or URL: 2.1.1
• Browser name/version: Firefox76