Implement cookie consent banner and integrate Google Consent API

Integrate Google Consent Management Platform (CMP) and a custom cookie consent banner component to manage user privacy preferences, including consent for analytics and advertising cookies.

Replit-Commit-Author: Agent
Replit-Commit-Session-Id: 2cd2c0bc-434c-4bc9-ad3f-b99d3897a0d1
Replit-Commit-Checkpoint-Type: full_checkpoint
Replit-Commit-Screenshot-Url: https://storage.googleapis.com/screenshot-production-us-central1/8cc42625-c1f5-4e43-99bd-77f2c4dedee2/2cd2c0bc-434c-4bc9-ad3f-b99d3897a0d1/gjpMN2A

client/index.html

@@ -4,6 +4,20 @@
     <meta charset="UTF-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1, user-scalable=no, viewport-fit=cover" />
     <title>go4.video – Top-Inhalte von Folx TV</title>
+    
+    <!-- Google Consent Management Platform -->
+    <script>
+      window.dataLayer = window.dataLayer || [];
+      function gtag(){dataLayer.push(arguments);}
+      gtag('consent', 'default', {
+        'ad_storage': 'denied',
+        'analytics_storage': 'denied',
+        'ad_user_data': 'denied',
+        'ad_personalization': 'denied'
+      });
+    </script>
+    <script async src="https://fundingchoicesmessages.google.com/i/pub-4465464714854276?ers=1" nonce="temp-nonce"></script>
+    <script nonce="temp-nonce">(function() {function signalGooglefcPresent() {if (!window.frames['googlefcPresent']) {if (document.body) {const iframe = document.createElement('iframe'); iframe.style = 'width: 0; height: 0; border: none; z-index: -1000; left: -1000px; top: -1000px;'; iframe.style.display = 'none'; iframe.name = 'googlefcPresent'; document.body.appendChild(iframe);} else {setTimeout(signalGooglefcPresent, 0);}}}signalGooglefcPresent();})();</script>
     <meta name="description" content="Video-Welt von Folx TV – immer bei dir" />
     
     <!-- Google Search Console verification -->