converting music to OGG

packages/pinball_audio/lib/gen/assets.gen.dart

@@ -8,7 +8,7 @@ import 'package:flutter/widgets.dart';
 class $AssetsMusicGen {
   const $AssetsMusicGen();
 
-  String get background => 'assets/music/background.wav';
+  String get background => 'assets/music/background.ogg';
 }
 
 class $AssetsSfxGen {

packages/pinball_audio/test/src/pinball_audio_test.dart

@@ -95,7 +95,7 @@ void main() {
         ).called(1);
         verify(
           () => preCacheSingleAudio
-              .onCall('packages/pinball_audio/assets/music/background.wav'),
+              .onCall('packages/pinball_audio/assets/music/background.ogg'),
         ).called(1);
       });
     });