Update media upload to prioritize Facebook feed images

Modify MediaUpload component to use `facebookFeedUrl` if available, otherwise fallback to `originalUrl` for image display.

Replit-Commit-Author: Agent
Replit-Commit-Session-Id: ae4037a0-2a6f-4530-9bac-79b543286bda
Replit-Commit-Checkpoint-Type: intermediate_checkpoint
Replit-Commit-Screenshot-Url: https://storage.googleapis.com/screenshot-production-us-central1/397bca8c-984f-43ff-841a-10897aeb8140/ae4037a0-2a6f-4530-9bac-79b543286bda/F3F3s9V

client/src/components/media-upload.tsx

@@ -220,7 +220,7 @@ export default function MediaUpload() {
                         </div>
                       ) : (
                         <img 
-                          src={media.originalUrl} 
+                          src={media.facebookFeedUrl || media.originalUrl} 
                           alt={media.fileName}
                           className="w-full h-full object-cover"
                         />