[MM-56399][MM-56397][MM-56456][MM-56269] Various changes for user reporting for admins (#25839)

* [MM-56399] Add user count endpoint for reporting

* [MM-56397] Added search term to user report filter

* Missing translation

* [MM-56456] Rename up/down to prev/next for reporting cursoring

* [MM-56269] Add DeleteAt, MfaActive and AuthService fields to UserReport

* PR feedback

* Fix test

---------

Co-authored-by: Mattermost Build <build@mattermost.com>

server/channels/store/timerlayer/timerlayer.go

@@ -10709,6 +10709,22 @@ func (s *TimerLayerUserStore) GetUnreadCountForChannel(userID string, channelID
 	return result, err
 }
 
+func (s *TimerLayerUserStore) GetUserCountForReport(filter *model.UserReportOptions) (int64, error) {
+	start := time.Now()
+
+	result, err := s.UserStore.GetUserCountForReport(filter)
+
+	elapsed := float64(time.Since(start)) / float64(time.Second)
+	if s.Root.Metrics != nil {
+		success := "false"
+		if err == nil {
+			success = "true"
+		}
+		s.Root.Metrics.ObserveStoreMethodDuration("UserStore.GetUserCountForReport", success, elapsed)
+	}
+	return result, err
+}
+
 func (s *TimerLayerUserStore) GetUserReport(filter *model.UserReportOptions) ([]*model.UserReportQuery, error) {
 	start := time.Now()