Add a beautiful hero image to the website's homepage

Update the hero section background to a new professional image, adjust sizing and positioning, and modify padding for better visual presentation.

Replit-Commit-Author: Agent
Replit-Commit-Session-Id: 7513527a-5478-461c-a85d-7c3e30aac712
Replit-Commit-Checkpoint-Type: full_checkpoint
Replit-Commit-Event-Id: 0156a754-f845-4cdb-b52a-e739af10d777
Replit-Commit-Screenshot-Url: https://storage.googleapis.com/screenshot-production-us-central1/20bab3dd-66b7-4a41-a432-90783d9f6d64/7513527a-5478-461c-a85d-7c3e30aac712/1MXsEsj
Replit-Helium-Checkpoint-Created: true
