implemented dao's for every table

lib/data/dao/game_dao.dart

@@ -1,4 +1,30 @@
 import 'package:game_tracker/data/database.dart';
 import 'package:drift/drift.dart';
 
-extension GameDao on AppDatabase {}
+extension GameDao on AppDatabase {
+  Future<List<GameTableData>> getAllGames() async {
+    return await select(gameTable).get();
+  }
+
+  Future<GameTableData> getGameById(int id) async {
+    return await (select(
+      gameTable,
+    )..where((ga) => ga.id.equals(id))).getSingle();
+  }
+
+  Future<void> addGame(int id, String name) async {
+    await into(
+      gameTable,
+    ).insert(GameTableCompanion.insert(name: name));
+  }
+
+  Future<void> deleteGameById(int id) async {
+    await (delete(gameTable)..where((ga) => ga.id.equals(id))).go();
+  }
+
+  Future<void> updateGameName(int id, String newName) async {
+    await (update(gameTable)..where((ga) => ga.id.equals(id))).write(
+      GameTableCompanion(name: Value(newName)),
+    );
+  }
+}