Added delays in constants.dart

lib/core/constants.dart

@@ -19,4 +19,13 @@ class Constants {
       remindDays: 45,
       minLaunches: 15,
       remindLaunches: 40);
+
+  /// Delay in milliseconds before a pop-up appears.
+  static const int popUpDelay = 300;
+
+  /// Delay in milliseconds before the round view appears after the previous one is closed.
+  static const int roundViewDelay = 600;
+
+  /// Duration in milliseconds for the fade-in animation of texts.
+  static const int fadeInDuration = 300;
 }

lib/presentation/views/active_game_view.dart

@@ -1,3 +1,4 @@
+import 'package:cabo_counter/core/constants.dart';
 import 'package:cabo_counter/core/custom_theme.dart';
 import 'package:cabo_counter/data/game_manager.dart';
 import 'package:cabo_counter/data/game_session.dart';
@@ -474,7 +475,7 @@ class _ActiveGameViewState extends State<ActiveGameView> {
 
     confettiController.play();
 
-    await Future.delayed(const Duration(milliseconds: 300));
+    await Future.delayed(const Duration(milliseconds: Constants.popUpDelay));
 
     if (context.mounted) {
       showCupertinoDialog(

lib/presentation/views/create_game_view.dart

@@ -1,3 +1,4 @@
+import 'package:cabo_counter/core/constants.dart';
 import 'package:cabo_counter/core/custom_theme.dart';
 import 'package:cabo_counter/data/game_manager.dart';
 import 'package:cabo_counter/data/game_session.dart';
@@ -187,7 +188,8 @@ class _CreateGameViewState extends State<CreateGameView> {
                             opacity: _playerNameTextControllers.length > 1
                                 ? 1.0
                                 : 0.0,
-                            duration: const Duration(milliseconds: 300),
+                            duration: const Duration(
+                                milliseconds: Constants.fadeInDuration),
                             child: Padding(
                               padding: const EdgeInsets.only(right: 8.0),
                               child: ReorderableDragStartListener(

lib/presentation/views/main_menu_view.dart

@@ -239,7 +239,7 @@ class _MainMenuViewState extends State<MainMenuView> {
     BadRatingDialogDecision badRatingDecision = BadRatingDialogDecision.cancel;
 
     // so that the bad rating dialog is not shown immediately
-    await Future.delayed(const Duration(milliseconds: 300));
+    await Future.delayed(const Duration(milliseconds: Constants.popUpDelay));
 
     switch (preRatingDecision) {
       case PreRatingDialogDecision.yes: