Add the user's last seen date in the admin panel

backend/models/users.go

@@ -33,8 +33,7 @@ const (
 		SELECT username, MAX(last_used) AS last_seen
 		FROM tokens GROUP BY username
 	) AS tok
-	ON u.name = tok.username
-	ORDER by u.created_at;
+	ON u.name = tok.username;
 	`
 	getPolochonUsersQuery = `SELECT * FROM users WHERE polochon_id = $1;`
 )