What is the problem?

Both the old app and lichess.org play the "bell" sound when a new game starts (e.g. after finding a game via the game matrix, or when your next pairing in a tournament is found). This is currently missing from the new app.

Steps to reproduce the bug

1. Open App
2. Press any time control in the game matrix (e.g. 5+0)
3. Wait for opponent
4. Once opponent is found, no bell sound is played

App version

0.9.3

Device Info

Pixel 4a, Android

Additional information

Note that the bell sound is already played when a game is finished.

The correct place to implement this is probably somewhere in game_controller.dart? We could play the sound when receiving a new game with game.status == started and game.steps.length == 0.