[Enhancement] Provide Low Quality Audio Streams

[n-ce]

Is your enhancement request related to a problem? Please describe.

The problem of playback on a slower internet.

Describe the solution you'd like

Make more audio streams available such as 139, 599 and 600 available.

Describe alternatives you've considered

Piped does provide itags 139, 599 and 600

Additional context

[unixfox]

On which invidious instance did you test that?

[n-ce]

On which invidious instance did you test that?

To prevent any confusion, I'm talking about the API response data.
https://iv.ggtyler.dev
https://invidious.reallyaweso.me
https://invidious.adminforge.de

[LittleMissMOSFET]

Request is seconded from someone without always-on internet. I noticed the audio download is all large file high quality now, which is a waste of bandwidth and storage for just audio stories. Thanks.