Add Whispered link to datenschutz nav

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: neuralprocessing

site/datenschutz.html

@@ -131,6 +131,7 @@ <h2>9. Aktualität</h2>
     <a href="../index.html">Home</a>
     <a href="support.html">Support</a>
     <a href="impressum.html">Impressum</a>
+    <a href="datenschutz-whispered.html">Whispered</a>
 </nav>
 <script src="email.js"></script>
 </body>