aqhome-cgi: use AQH_ModService_DenyRequest

this function redirects to the login page and then to the requested page.

apps/aqhome-cgi/modules/static/en/login.html

@@ -4,6 +4,7 @@
         <h3>Enter your login credentials</h3>
 
         <form action="login" method="post">
+            <input type="hidden" name="dest" value="$(destination)">
             <label for="userid">Username:</label>
             <input type="text" id="userid" name="userid" placeholder="Enter your Username" required>
             <label for="password">Password:</label>
@@ -20,6 +21,4 @@
             </a>
         </p>
     </div>
-</body>
 
-</html>