Ensure ads do not overlap content and fix footer positioning

Reintroduce side ads to informational pages (Impressum, Kontakt, Datenschutz, Über uns, Empfang) and adjust footer z-index to ensure it displays above ads, preventing content overlap.

Replit-Commit-Author: Agent
Replit-Commit-Session-Id: 23852c00-4779-460a-9e0c-d09fee4b6c92
Replit-Commit-Checkpoint-Type: full_checkpoint
Replit-Commit-Event-Id: 3e8e276e-186c-4696-aba7-43dd2de13954
Replit-Commit-Screenshot-Url: https://storage.googleapis.com/screenshot-production-us-central1/f209e72a-0939-48fa-84fc-57854de71967/23852c00-4779-460a-9e0c-d09fee4b6c92/ee1CXlO
Replit-Helium-Checkpoint-Created: true

client/src/pages/about.tsx

@@ -2,12 +2,14 @@ import { Tv } from "lucide-react";
 import Header from "@/components/header";
 import Footer from "@/components/footer";
 import { usePageMeta } from "@/hooks/use-page-meta";
+import { PageSideAds } from "@/components/adsense";
 
 export default function AboutPage() {
   usePageMeta("Über FOLX TV - Volksmusik & Schlager Fernsehsender", "Alles über FOLX TV – Ihren Fernsehsender für Volksmusik und Schlager seit 2013.");
   return (
     <div className="min-h-screen bg-background">
       <Header />
+      <PageSideAds contentHalfWidth={384} />
       <main className="max-w-3xl mx-auto px-4 sm:px-6 lg:px-8 py-8">
         <div className="flex items-center gap-3 mb-8">
           <Tv className="w-7 h-7 text-primary" />