[MM-8497] Ability to set Do Not Disturb for a specified period of time (#17680)

* Revert "Revert "[MM-8497] Ability to set Do Not Disturb for a specified period of time (#16067)" (#17657)"

This reverts commit ff383990f8.

* add debug log for recurring function

* add feature flag for dnd timed status

* refactoring changes

Co-authored-by: Mattermod <mattermod@users.noreply.github.com>

store/timerlayer/timerlayer.go

@@ -6888,6 +6888,22 @@ func (s *TimerLayerStatusStore) SaveOrUpdate(status *model.Status) error {
 	return err
 }
 
+func (s *TimerLayerStatusStore) UpdateExpiredDNDStatuses() ([]*model.Status, error) {
+	start := timemodule.Now()
+
+	result, err := s.StatusStore.UpdateExpiredDNDStatuses()
+
+	elapsed := float64(timemodule.Since(start)) / float64(timemodule.Second)
+	if s.Root.Metrics != nil {
+		success := "false"
+		if err == nil {
+			success = "true"
+		}
+		s.Root.Metrics.ObserveStoreMethodDuration("StatusStore.UpdateExpiredDNDStatuses", success, elapsed)
+	}
+	return result, err
+}
+
 func (s *TimerLayerStatusStore) UpdateLastActivityAt(userID string, lastActivityAt int64) error {
 	start := timemodule.Now()