[Feature Request] Implement Chromecast

[duzda]

As of right now, I just hid the button, I have no idea, whether it's possible to fully support chromecast in an electron app, as the implementation in electron is missing. I've seen a few packages, that should be able to provide chromecast, but the implementation is hacky and I had no luck figuring out how to work with them. This issue is probably upstream, and may get resolved once electron gets proper implementation.