chore: Follow up draft fix

lib/pages/chat/chat.dart

@@ -268,6 +268,7 @@ class ChatController extends State<Chat> {
 
   Future<void> send() async {
     if (sendController.text.trim().isEmpty) return;
+    _storeInputTimeoutTimer?.cancel();
     final prefs = await SharedPreferences.getInstance();
     prefs.remove('draft_$roomId');
     var parseCommands = true;