Integrate podcast source

[niansa]

Is there an existing issue for this?

• [X] I have searched the existing issues

Pain

Playing podcasts that aren't on YouTube causes Spotube to not find a proper audio source.

Suggested solution

Implement something like Antennapod and allow its use alongside the YouTube source.

Useful resources

https://github.com/AntennaPod

Additional information

No response

Self grab

• [ ] I'm ready to work on this issue!

[KRTirtho]

I guess we can use https://iheart.com/podcast as a source for Spotify Podcasts