Refactoring & comments

lib/data/game_manager.dart

@@ -0,0 +1,30 @@
+import 'package:cabo_counter/data/game_session.dart';
+import 'package:cabo_counter/services/local_storage_service.dart';
+import 'package:flutter/foundation.dart';
+
+class GameManager extends ChangeNotifier {
+  List<GameSession> gameList = [];
+
+  /// Adds a new game session to the list and sorts it by creation date.
+  /// Takes a [GameSession] object as input. It then adds the session to the `gameList`,
+  /// sorts the list in descending order based on the creation date, and notifies listeners of the change.
+  /// It also saves the updated game sessions to local storage.
+  void addGameSession(GameSession session) {
+    gameList.add(session);
+    gameList.sort((a, b) => b.createdAt.compareTo(a.createdAt));
+    notifyListeners();
+    LocalStorageService.saveGameSessions();
+  }
+
+  /// Removes a game session from the list and sorts it by creation date.
+  /// Takes a [index] as input. It then removes the session at the specified index from the `gameList`,
+  /// sorts the list in descending order based on the creation date, and notifies listeners of the change.
+  /// It also saves the updated game sessions to local storage.
+  void removeGameSession(int index) {
+    gameList.removeAt(index);
+    notifyListeners();
+    LocalStorageService.saveGameSessions();
+  }
+}
+
+final globals = GameManager();