feat: set owned field to true by default when adding a game

game_collection/app.py

@@ -30,7 +30,7 @@ def add_game():
         title=data['title'],
         date=datetime.now().strftime('%Y-%m-%d'),  # Set current date
         buyer=buyer_username,  # Set buyer as the authenticated user's username
-        owned=data['owned']
+        owned=True  # Set owned to True by default
     )
     db.session.add(new_game)
     db.session.commit()