Issue

Description

As reported in Gitter by user @evilblade666

`Hi, guys. My home

Should be able to add known app match patterns to the whitelist via a dropdown (or similar) method.

https://github.com/hensm/fx_cast/blob/05ff30196442cef15191125d260025142943ff7b/ext/src/lib/knownApps.ts#L18-L27

Please refer to the Weblate project.

and get it into ca.

Continuation of hauxir/rapidbay#10

Say I have two players:
Player player1 = Player(id: 1);
Player player2 = Player(id: 2);

If I change the volume of player1 it will also change the volume for player2, which shouldn't happen.