feat: Playback speeds not being maintained when next video plays

[Xycotic01]

Feature description

When you play a video in a playlist at any speed above 2x, it reverts to 2x when the next video in the playlist plays. Maybe the custom playback speed features can be adjusted/expanded to address this. Maybe have the default be a consistent playback speed without any reversions to 2x and have a separate option to only increase the playback speed for the current video and not other videos in the playlist.

Motivation

This playback speed reversion to 2x is somewhat annoying sometimes, but there are also times where i want to fast forward through a specific singular video. Like I said, maybe the custom playback speed feature can have some more customization options.

Acknowledgements

• I have checked all open and closed feature requests and this is not a duplicate
• I have chosen an appropriate title.
• All requested information has been provided properly.

[LisoUseInAIKyrios]

Basically a duplicate of #52

[LisoUseInAIKyrios]

One way to avoid this issue is to not set a ReVanced default playback speed, and then any speed you pick in the playlist is kept through the entire playlist.