[FR] speaker group in media_player type

[saya6k]

Lovelace card like mini media player support speaker group features

It would be great if bubble card media player type also support speaker group features like join/unjoin, reducing need to customize

Starting from some famous integration like Sonos or linkplay would be great idea.

[ayostepht]

Second this! Mini Media Player has implemented this well (https://github.com/kalkih/mini-media-player/)