Restore getUserMemberStatus function to original implementation and fix database queries

admin_web_users.php

@@ -1,4 +1,5 @@
-<?php include_once('header02.php');
+<?php define('HEADER_VARIANT', '02');
+require_once('header.php');
 checkSuperAdmin();
 // SQL query to fetch data
 $sql = "SELECT user_id, first_name, last_name, email, member, date_joined, token, is_verified, profile_pic FROM users";