Customize 404 page

The 404 returns html content that is not customizable .
This is done by the app/controllers/DefaultController.php, required by the app/lib/Controller/RequestDispatcher.php.

<img width="692" height="371" alt="Image" src="https://github.com/user-attachments/assets/a4f90537-e5b0-4b15-8975-9fce26647629" />