Level changes bug

Description: Once the level is completed it should be increment to the next level that users should see on the website. Figure out where you can add the condition so that the next level is been render on website

Look for level completion logic in the frontend code, likely in a component handling game progression. Check for state updates after a level ends and ensure the next level is rendered. Test by completing a level and verifying the UI updates correctly.

索引モデルが issue の本文から書いたものです。