feat: Add user edit modal and user management pages

- Implemented user edit modal in user_edit.html for editing user details.
- Updated sidebar.html to correctly reflect active states for Users and Settings.
- Created table-07.html for displaying user data in a structured format.
- Added settings.html for managing email content and configurations.
- Developed users.html for listing all users with functionality to add and edit users.

api/test.php

@@ -0,0 +1,16 @@
+<?php
+require "api.php";
+
+$id = 1;
+
+$api = new spamhasiApi();
+
+$db = $api->getDB();
+
+$sql = "SELECT * FROM users WHERE id = :id";
+$stmt = $db->prepare($sql);
+$stmt->execute([':id' => $id]);
+$result = $stmt->fetch(PDO::FETCH_ASSOC);
+
+print_r($result);
+?>