[MM-55014][MM-55015] Add last login timestamp for users, add materialized view and refresh job to keep track of post stats for Postgres (#25152)

* [MM-55014][MM-55015] Add last login timestamp for users, add materialized view and refresh job for Postgres

* Check fixes

* Fix type issue

* Add verification that lastlogin was updated

* PR feedback

* Morge'd

* Morge'd again

* Merge'd

* Update admin setting strings

* WIP

* PR feedback

* Oops

* Fix i18n

---------

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

server/public/model/user.go

@@ -106,6 +106,7 @@ type User struct {
 	TermsOfServiceId       string    `json:"terms_of_service_id,omitempty"`
 	TermsOfServiceCreateAt int64     `json:"terms_of_service_create_at,omitempty"`
 	DisableWelcomeEmail    bool      `json:"disable_welcome_email"`
+	LastLogin              int64     `json:"last_login,omitempty"`
 }
 
 func (u *User) Auditable() map[string]interface{} {
@@ -611,6 +612,7 @@ func (u *User) Sanitize(options map[string]bool) {
 	u.Password = ""
 	u.AuthData = NewString("")
 	u.MfaSecret = ""
+	u.LastLogin = 0
 
 	if len(options) != 0 && !options["email"] {
 		u.Email = ""