Visitor sign in kiosk: multi-site, badge printing, WWCC expiry warnings, admin accounts with 2FA

public/index.html

@@ -224,10 +224,7 @@
 
 <footer class="foot">
   <span>Created by: Jess Rogerson (yelling commands at Claude.AI)</span>
-  <span>
-    <button class="foot-link" id="change-site" hidden></button>
-    <a href="/admin">Admin</a>
-  </span>
+  <button class="foot-link" id="change-site" hidden></button>
 </footer>
 
 <iframe id="badge-frame" title="Badge printing" aria-hidden="true"></iframe>