[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/public/model/report.go

@@ -24,7 +24,7 @@ var (
 
 type ReportingBaseOptions struct {
 	SortDesc        bool
-	Direction       string // Accepts only "up" or "down"
+	Direction       string // Accepts only "prev" or "next"
 	PageSize        int
 	SortColumn      string
 	FromColumnValue string
@@ -66,12 +66,7 @@ type UserReportQuery struct {
 }
 
 type UserReport struct {
-	Id          string `json:"id"`
-	Username    string `json:"username"`
-	Email       string `json:"email"`
-	CreateAt    int64  `json:"create_at,omitempty"`
-	DisplayName string `json:"display_name"`
-	Roles       string `json:"roles"`
+	User
 	UserPostStats
 }
 
@@ -82,6 +77,7 @@ type UserReportOptions struct {
 	HasNoTeam    bool
 	HideActive   bool
 	HideInactive bool
+	SearchTerm   string
 }
 
 func (u *UserReportOptions) IsValid() *AppError {
@@ -99,12 +95,7 @@ func (u *UserReportOptions) IsValid() *AppError {
 
 func (u *UserReportQuery) ToReport() *UserReport {
 	return &UserReport{
-		Id:            u.Id,
-		Username:      u.Username,
-		Email:         u.Email,
-		CreateAt:      u.CreateAt,
-		DisplayName:   u.GetDisplayName(ShowNicknameFullName),
-		Roles:         u.Roles,
+		User:          u.User,
 		UserPostStats: u.UserPostStats,
 	}
 }