Improve website content and fix navigation issues

Update website meta tags, SEO information, and fix a banner overlay bug to ensure all interactive elements are clickable.

Replit-Commit-Author: Agent
Replit-Commit-Session-Id: 23852c00-4779-460a-9e0c-d09fee4b6c92
Replit-Commit-Checkpoint-Type: full_checkpoint
Replit-Commit-Event-Id: 60ed045f-57e0-4c65-bc71-4205e0064bbb
Replit-Commit-Screenshot-Url: https://storage.googleapis.com/screenshot-production-us-central1/f209e72a-0939-48fa-84fc-57854de71967/23852c00-4779-460a-9e0c-d09fee4b6c92/aNXfGlM
Replit-Helium-Checkpoint-Created: true

server/routes.ts

@@ -821,6 +821,7 @@ export async function registerRoutes(
         { loc: "/gallery", priority: "0.7", changefreq: "weekly" },
         { loc: "/horoskop", priority: "0.7", changefreq: "daily" },
         { loc: "/rezepte", priority: "0.6", changefreq: "monthly" },
+        { loc: "/kontakt", priority: "0.5", changefreq: "yearly" },
         { loc: "/empfang-folx-tv", priority: "0.5", changefreq: "monthly" },
         { loc: "/ueber-uns", priority: "0.4", changefreq: "yearly" },
         { loc: "/impressum", priority: "0.3", changefreq: "yearly" },
@@ -888,6 +889,7 @@ export async function registerRoutes(
 Allow: /
 Disallow: /api/
 Disallow: /search
+Disallow: /admin/
 
 Sitemap: https://folx.tv/sitemap.xml
 `;