Add a new page for Gipfelstammtisch videos

Introduce a new route and page component for "Gipfelstammtisch" content, and add navigation links to access it from various parts of the application.

Replit-Commit-Author: Agent
Replit-Commit-Session-Id: 890577b1-c154-40a4-a177-a0c6d55320c3
Replit-Commit-Checkpoint-Type: full_checkpoint
Replit-Commit-Screenshot-Url: https://storage.googleapis.com/screenshot-production-us-central1/8cc42625-c1f5-4e43-99bd-77f2c4dedee2/890577b1-c154-40a4-a177-a0c6d55320c3/2xHHKQn

client/src/pages/home.tsx

@@ -93,6 +93,10 @@ export default function Home() {
                     DIE GESCHICHTE DES LIEDES
                     <span className="absolute bottom-0 left-0 w-0 h-0.5 bg-gradient-to-r from-purple-400 via-blue-500 to-purple-600 transition-all duration-300 group-hover:w-full"></span>
                   </Link>
+                  <Link href="/gipfelstammtisch" className="relative text-bunny-light hover:text-bunny-blue transition-colors group">
+                    GIPFELSTAMMTISCH
+                    <span className="absolute bottom-0 left-0 w-0 h-0.5 bg-gradient-to-r from-purple-400 via-blue-500 to-purple-600 transition-all duration-300 group-hover:w-full"></span>
+                  </Link>
                 </nav>
                 
                 <div className="relative">
@@ -149,6 +153,13 @@ export default function Home() {
                 >
                   DIE GESCHICHTE DES LIEDES
                 </Link>
+                <Link 
+                  href="/gipfelstammtisch" 
+                  className="text-bunny-light hover:text-bunny-blue transition-colors text-sm font-medium"
+                  onClick={() => setIsMobileMenuOpen(false)}
+                >
+                  GIPFELSTAMMTISCH
+                </Link>
               </nav>
               
               <div className="relative">