MM-24865: local mode for some user handlers (#14511)

Summary
- Local mode handler for createUser
- Local mode handler for updateUser
- Local mode support for updateUserRoles
- Local mode support for sendPasswordReset
- Local mode support for updateUserMfa
- Local mode support for updateUserActive

Ticket Link
- https://mattermost.atlassian.net/browse/MM-24865
- https://mattermost.atlassian.net/browse/MM-24869
- https://mattermost.atlassian.net/browse/MM-24866
- https://mattermost.atlassian.net/browse/MM-24868
- https://mattermost.atlassian.net/browse/MM-24870
- https://mattermost.atlassian.net/browse/MM-25041

app/authorization.go

@@ -92,6 +92,9 @@ func (a *App) SessionHasPermissionToUser(session model.Session, userId string) b
 	if userId == "" {
 		return false
 	}
+	if session.IsUnrestricted() {
+		return true
+	}
 
 	if session.UserId == userId {
 		return true