Integrating SEO tools into the Sobki profiles

Meeting with expert SEO notes:

SEO
- Structured data on ariane thread. | Données structurées sur fil d'ariane.
- XML sitemap : error management 403/404 | gestion des erreurs 403/404
- Google ads => depends on tracking | dépend du tracking
- SEO testing checklist | Tester SEO checklist

https://www.drupal.org/project/filefield_paths
https://www.drupal.org/project/hreflang
https://www.drupal.org/project/search404
https://www.drupal.org/project/diff
https://www.drupal.org/project/security_review
https://www.drupal.org/project/advagg

Add XML Sitemap to your robots.txt file
This needs an absolute URL, so a dynamic addition to the robots.txt config. Need to test the issue: https://www.drupal.org/project/robotstxt/issues/3218880

SEO checklist tested, maybe one point or two to check but do not put this module in Sobki.

TODO:
see some points in SEO checklist
check XML sitemap : error management 403/404 | gestion des erreurs 403/404
Add XML Sitemap to your robots.txt file
decide to integrate or not the following modules
https://www.drupal.org/project/filefield_paths
https://www.drupal.org/project/hreflang
https://www.drupal.org/project/search404
https://www.drupal.org/project/diff

Also add https://drupal.org/project/yoast_seo, currently blocked by https://www.drupal.org/project/yoast_seo/issues/3424908