[Feature] Add two buttons for same action (rewind)

[gamersfan]

It will be pretty good, if we can get two buttons for one action,
like Arrows left+right and Z+X for rewind video.

I try to change it by myself and even ask ChatGPT how to do that and fail :(

My local VLC player can do this and i get some other extention to rewind Z+X and arrow at the same time in standart HTML player in Chrome. But when i start faststream it not work. SO i can only ask developer to get two buttons for one action, plz.