increaseVolume method
Increase volume by percentage
Implementation
Future<bool> increaseVolume(int percentage, [String? player]) async {
try {
final currentVolume = await getVolume(player);
if (currentVolume == null) return false;
final newVolume = (currentVolume + percentage).clamp(0, 100);
return setVolume(newVolume, player);
} catch (e) {
debugPrint('Error increasing volume: $e');
return false;
}
}