[Audio] Toggle setting the currently playing song as a voice channel status

### What component of Red (cog, command, API) would you like to see improvements on?

Audio

### Describe the enhancement you're suggesting.

Current functionality of audioset status according to docs:
[p]audioset status - Show the now playing song in the bot’s status, or show how many servers the bot is playing music on, if more than one.

This command and functionality could be extended (sub command?) to also display the currently playing song as a voice channel status.


### Anything else?

While the last comment on this issue mentions channel status may be replaced by hang status - recently the hang status was completely rolled back to 0% and cements channel status as what is likely staying instead https://github.com/discord/discord-api-docs/pull/6398.

Unfortunately I couldn't find anything showing this endpoint been implemented yet, so even if this idea is approved, it may have to stay blocked for a while.