[Sync EN] Rewrite Persistent connections page to remove personalization and bad grammar (#5502)

[github-actions]

Commit: https://github.com/php/doc-en/commit/ee5ee84013f11aaaf01b09484bc9aa3225379748
PR: https://github.com/php/doc-en/pull/5502

Fichiers FR à mettre à jour

• features/persistent-connections.xml