Disconnect zones, groups from inactive source

[SteveMicroNova]

#1048

When you make an automation in home assistant that connects a stream to a random inactive source, sometimes that source will have zones or groups connected to it and you can find yourself playing music to places you'd rather leave silent. Make zones and groups disconnect from sources when no stream is playing.

[linknum23]

I realize this makes the HA integration easier but it breaks the workflow of leave zones connected to a source and change the stream that houses with the wall panels as the primary input would use.

[SteveMicroNova]

I realize this makes the HA integration easier but it breaks the workflow of leave zones connected to a source and change the stream that houses with the wall panels as the primary input would use.

Ideally we would remove sources from the wallpanels at some point and make this doable, though I suppose in the meantime I can make home assistant be more forceful when it comes to attaching zones to sources by knocking anything it doesn't expect off of the source