Compress the subdomain block into a single block

[jbriones1]

We have multiple server blocks that have duplicated code. According to the nginx docs, we can use regex to grab the subdomain and use it as a variable.

https://nginx.org/en/docs/http/server_names.html

This looks easy, but every time I think that I break access to the site, so I'll open this up to someone else if they want to work on it until I have the time to get it working.

[jbriones1]

This requires a hook with certbot to create a wildcard SSL certificate. This complicates things as we don't use Digital Ocean to manage our DNS, but Namecheap.

https://certbot.eff.org/faq#does-let-s-encrypt-issue-wildcard-certificates