Remember playback speed

[efb4f5ff-1298-471a-8973-3d47447115dc]

Is your feature request related to a usage problem (not a bug)? Please describe.
At the moment when u change the playback speed while watching a video to 1,5x and u click on another video the playback speed gets overwritten by the default set playback speed in the settings.

Describe the solution you'd like to see implemented
So lets take the current implementation of the default volume setting as an example. Your default setting is set to 100% so when u go to a video the volume will be 100%. When u change the volume to 50% while watching a video and click on another video the volume stays at 50%.

I would like to see the same implementation for playback speed.

Describe alternatives you've considered
None.

Screenshots
None.

Additional context
None.

[maxsubs]

this is especially useful if you're (like me) subscribed to music channels and like to watch the talking videos at faster speeds, but whenever you want to listen to some songs, you have to change the speed back to 1x on each song video you open. I second this. Also it could be nice to have a global speed AND an option to change speed for the channels you select. That way, we could have a global 1.5x and for the music channels, 1x. Some podcast players have this per-channel option.

[RubenArtmann]

The icing on top would be regex support, so you could do:

• 1.0x for /VEVO$/ matching the channel
• 1.8x for /OpenCourseWare/ matching the channel
• 1.0x for /(Official\sAudio)/ matching the title
• 1.0x for /Auto-generated\sby\sYouTube./ matching the description

[efb4f5ff-1298-471a-8973-3d47447115dc]

closing in favor of #2295