Remove ad integrations from various platform pages

Refactor HeaderAd and VideoPage components to remove AdSenseAd integrations and adjust header ad container.

Replit-Commit-Author: Agent
Replit-Commit-Session-Id: 401e2ec0-e00d-4f10-9d0e-60f3d479f9a5
Replit-Commit-Checkpoint-Type: full_checkpoint
Replit-Commit-Screenshot-Url: https://storage.googleapis.com/screenshot-production-us-central1/60d372ff-2c10-46c7-b01b-10c3435136b0/401e2ec0-e00d-4f10-9d0e-60f3d479f9a5/3l7HcE7

client/src/pages/VideoPage.tsx

@@ -501,20 +501,12 @@ export default function VideoPage() {
         )}
       </div>
 
-      {/* Fixed Header Ad */}
-      <HeaderAd />
+      {/* Fixed Header Ad - contained within page width */}
+      <div className="container mx-auto">
+        <HeaderAd />
+      </div>
 
       <div className="container p-4 lg:p-6 relative">
-        {/* Ad within container - same width as content */}
-        <div className="flex justify-center mb-6">
-          <AdSenseAd 
-            adSlot="6554928035"
-            width={970}
-            height={90}
-            className="max-w-full"
-          />
-        </div>
-
         {/* Background logo decorations */}
         <div 
           style={{