Keep snapdroid from disconnecting from the server when idle too long.

[c-MM]

Is your feature request related to a problem? Please describe. I have the opposite problem of issue #1054. snapdroid closes the connection to the snapserver after some idle time.

Describe the solution you'd like I'd like snapdroid to stay connected to the server.

Describe alternatives you've considered None

Additional context I tried to use an old phone glued to the wall in the kitchen both as panel for homeassistant and as snapcast client. Homeassistant is the active Application displaying Homeassistant stuff and snapdroid is in the background. The audio-out of the phone is connected to a small amp with speakers. After some time (I guess around 3h from the HA state) without playing snapdroid looses the connection to the snapserver and is displayed as "standby" in homeassistant. It's impossible to reactivate audio output remotely. I have to switch to the snapclient app, press stop and play in the app and things work again. It would be nice if snapdroid would reconnect the snapserver on it's own.

I have battery optimisation disabled for snapdroid, but it doesn't help.