Change magic unlock number to positive and remove textinput field formatter

ios/Runner/AppDelegate.swift

@@ -1,7 +1,7 @@
 import UIKit
 import Flutter
 
-@UIApplicationMain
+@main
 @objc class AppDelegate: FlutterAppDelegate {
   override func application(
     _ application: UIApplication,

lib/screens/disable_focus_mode_screen.dart

@@ -14,7 +14,7 @@ import '../routes.dart';
 import '../utils/snackbar_builder.dart';
 import '../utils/string_utils.dart';
 
-const _magicUnlockNumber = -1563948536;
+const _magicUnlockNumber = 1563948536;
 
 class GameState {
   final int maxNumber;
@@ -103,9 +103,10 @@ class _DisableFocusModeScreenState
                 TextFormField(
                   controller: guessController,
                   keyboardType: TextInputType.number,
-                  inputFormatters: [
-                    ThousandsSeparatorInputFormatter(),
-                  ],
+                  // inputFormatters: [
+                  //   ThousandsSeparatorInputFormatter(),
+                  // ],
+                  enableInteractiveSelection: true,
                   autovalidateMode: AutovalidateMode.onUserInteraction,
                   validator: (value) {
                     if (value == null) {