fix uneven feature grid by removing last two cards

Remove Mobile Responsive and Docker Ready cards to get a clean 4+4
grid layout. Docker is already covered in the Deploy section.

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

site/index.html

@@ -118,16 +118,6 @@
           <h3>Audit Log</h3>
           <p>Every configuration change is tracked and full-text searchable. See who did what and when.</p>
         </div>
-        <div class="card">
-          <div class="card-icon">📱</div>
-          <h3>Mobile Responsive</h3>
-          <p>Fully responsive UI with card views, mobile app bar, and touch-friendly controls. Manage your infrastructure from any device.</p>
-        </div>
-        <div class="card">
-          <div class="card-icon">🐳</div>
-          <h3>Docker Ready</h3>
-          <p>Up in seconds with a single docker-compose file. Persistent volumes, stateless app, easy to backup.</p>
-        </div>
       </div>
     </section>