[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

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

server/channels/store/store.go

@@ -481,6 +481,7 @@ type UserStore interface {
 	InsertUsers(users []*model.User) error
 	RefreshPostStatsForUsers() error
 	GetUserReport(filter *model.UserReportOptions) ([]*model.UserReportQuery, error)
+	GetUserCountForReport(filter *model.UserReportOptions) (int64, error)
 }
 
 type BotStore interface {