Add a new page for TV reception information and link it in the footer

Adds a new route for the EmpfangPage and includes a link to it in the footer component. Also updates gallery-data.json with new image URLs.

Replit-Commit-Author: Agent
Replit-Commit-Session-Id: 517dfa7b-26ac-463d-a6e1-a58c6df97188
Replit-Commit-Checkpoint-Type: full_checkpoint
Replit-Commit-Event-Id: df84a781-61cd-4047-83b2-9ae7605ed597
Replit-Commit-Screenshot-Url: https://storage.googleapis.com/screenshot-production-us-central1/f209e72a-0939-48fa-84fc-57854de71967/517dfa7b-26ac-463d-a6e1-a58c6df97188/EtK2Sno
Replit-Helium-Checkpoint-Created: true

client/src/components/footer.tsx

@@ -63,6 +63,11 @@ export default function Footer() {
                   <span className="text-muted-foreground cursor-pointer hover:text-primary transition-colors" data-testid="link-footer-rezepte">Rezepte</span>
                 </Link>
               </li>
+              <li>
+                <Link href="/empfang-folx-tv">
+                  <span className="text-muted-foreground cursor-pointer hover:text-primary transition-colors" data-testid="link-footer-empfang">Empfang</span>
+                </Link>
+              </li>
             </ul>
           </div>
           <div>