Update ad placement and format for better user experience

Update `AdSenseAd` component in `VideoPage.tsx` to use `adSlot="1372934919"` and `adFormat="auto"`, replacing the previous `adSlot="1234567894"` and `adFormat="rectangle"`.

Replit-Commit-Author: Agent
Replit-Commit-Session-Id: 946a0075-7e32-454b-b348-9e7f576d7f45
Replit-Commit-Checkpoint-Type: full_checkpoint
Replit-Commit-Screenshot-Url: https://storage.googleapis.com/screenshot-production-us-central1/60d372ff-2c10-46c7-b01b-10c3435136b0/946a0075-7e32-454b-b348-9e7f576d7f45/eNJCYo3

client/src/pages/VideoPage.tsx

@@ -804,10 +804,8 @@ export default function VideoPage() {
             {/* Bottom Sidebar Ad */}
             <div className="mt-6">
               <AdSenseAd 
-                adSlot="1234567894"
-                adFormat="rectangle"
-                width={300}
-                height={250}
+                adSlot="1372934919"
+                adFormat="auto"
                 className="w-full"
               />
             </div>