startReactionCheck method
void
startReactionCheck()
Implementation
void startReactionCheck() {
final currentTime = DateTime.now().millisecondsSinceEpoch;
// Remove emojis older than 3 seconds
_emojiQueue.removeWhere(
(emoji) => currentTime - int.parse(emoji.timestamp) > 3000,
);
notifyListeners();
sendEvent(UpdateView());
}