5dcc334d9c
* Alerting: move group update to alert rule service
* rename validateAlertRuleInterval to validateRuleGroupInterval
* init baseinterval correctly
* add seconds suffix
* extract validation function for reusability
* add context to err message
(cherry picked from commit cf684ed38f)
Co-authored-by: Jean-Philippe Quéméner <JohnnyQQQQ@users.noreply.github.com>