Create a separate nginx server for crawlee.dev

[markubra]

We still use one nginx config for apify docs and crawlee, this was always a quick hack, would be good to set up a separate crawlee docs nginx server

• create a separate nginx deployment
• disable ipv6 in crawlee.dev server block with: resolver 1.1.1.1 8.8.8.8 valid=30s ipv6=off;
• create a separate CloudFront resource and point crawlee.dev to it