alerting:clarify silence preview (#83754)
* alerting:clarify silence preview
* prettier
* Update docs/sources/alerting/configure-notifications/create-silence.md
Co-authored-by: brendamuir <100768211+brendamuir@users.noreply.github.com>
* Lint docs
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Co-authored-by: Armand Grillet <2117580+armandgrillet@users.noreply.github.com>
Co-authored-by: brendamuir <100768211+brendamuir@users.noreply.github.com>
(cherry picked from commit 89575f1df4)
Co-authored-by: tonypowa <45235678+tonypowa@users.noreply.github.com>