Fix some features

[Mantouisyummy]

as title.

Key Updates:

• Enabled autoplay for non-YouTube sources
• Fixed some issues with autoplay
• Changed the search source from YouTube Music to YouTube
• Replace 'syncedlyrics' with a custom asynchronous version.

[deepsource-io]

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[Nat1anWasTaken]

Can you explain why "ytmsearch" was changed to "ytsearch"? This was to make the lyrics feature work better.

[Mantouisyummy]

There are two reasons for changing to 'ytsearch':

1. The displayed song titles (such as in Chinese) will no longer appear in English just because it’s from YouTube Music.
2. Once the song titles are displayed according to the correct language, the lyrics search will become more accurate, avoiding the issue of showing English lyrics and song titles when searching for Chinese songs.