Update the Alerting HA docs (#60292)
* Update the Alerting HA docs
* Update docs/sources/alerting/set-up/configure-high-availability/_index.md
Co-authored-by: brendamuir <100768211+brendamuir@users.noreply.github.com>
* Update docs/sources/alerting/set-up/configure-high-availability/_index.md
Co-authored-by: brendamuir <100768211+brendamuir@users.noreply.github.com>
* Update docs/sources/alerting/set-up/configure-high-availability/_index.md
Co-authored-by: brendamuir <100768211+brendamuir@users.noreply.github.com>
* Update docs/sources/alerting/set-up/configure-high-availability/_index.md
Co-authored-by: brendamuir <100768211+brendamuir@users.noreply.github.com>
* Update docs/sources/alerting/set-up/configure-high-availability/_index.md
Co-authored-by: brendamuir <100768211+brendamuir@users.noreply.github.com>
* Update HA introduction paragraph
* Apply prettier
Co-authored-by: brendamuir <100768211+brendamuir@users.noreply.github.com>
(cherry picked from commit 9941dfc2b6)
Co-authored-by: Armand Grillet <2117580+armandgrillet@users.noreply.github.com>