This commit adds the 'connect-src' directive to the Content Security Policy in the nelmio_security.yaml file. This allows connections only to the same origin ('self').
- Refactored the `Page` class from the `App\Repository` namespace to the `App\Service` namespace.
- Updated the file path references in the `getPage()` method of the `Page` class to use `$this->kernel` instead of `$kernel`.
- Renamed the file from `src/Repository/Page.php` to `src/Service/Page.php`.
- Updated the import statement in the `DefaultController.php` file to reflect this change.
This commit improves code organization and ensures that file paths are correctly referenced.
