The code changes include an update to the response handling in index.php. Now, it checks if the request URI is '/metrics'. If so, it continues with the previous behavior of executing a script and outputting its result. If not, it loads a new 404 error page using Twig templating engine.
A new file '404.twig' has been added under templates directory which serves as a custom 404 error page. It displays the requested URI and provides a link back to '/metrics'.
A newline has been added to the metrics.twig template to improve code readability. This change separates different sections of the code, making it easier to understand and maintain.
Improved handling of submetrics for better data organization and presentation. Updated metric values based on retrieved data, ensuring accurate representation in the metrics template file.
