docs: Use continuwuity instead of homeserver for the docker service

This commit replaces all references of `homeserver` to `continuwuity`

The `docker-compose.yml` file also receives 2-space linting

docs/guides/delegation.mdx

@@ -226,10 +226,10 @@ The following Compose files are taken from [Docker deployment instructions](../d
 
 ```txt title="Caddyfile"
 https://matrix.example.com:443 {
-    reverse_proxy http://homeserver:8008
+    reverse_proxy http://continuwuity:8008
 }
 https://example.com:443 {
-    reverse_proxy /.well-known/matrix* http://homeserver:8008
+    reverse_proxy /.well-known/matrix* http://continuwuity:8008
 }
 ```
 

docs/guides/dns.mdx

@@ -37,7 +37,7 @@ networks:
         - subnet: "10.10.10.0/24"
 
 services:
-  homeserver:
+  continuwuity:
     # ...
     volume:
       - ./continuwuity-resolv.conf:/etc/resolv.conf:ro