startNativeBlink method
Starts native periodic blinking for better performance.
Uses native timers instead of Dart timers for more consistent timing and lower overhead.
interval - The interval between on/off toggles in milliseconds.
Implementation
Future<void> startNativeBlink(int interval) async {
_cancelAllTimers();
await TorchFlashlight.startNativeBlink(interval);
_isEnabled = true;
}