Modify docker-compose to be compatible with k8s (#149)

* Modify docker-compose file using a hyphen for services instead of underscore

* Change URL in Nginx setting

docker/settings/nginx-conf/nginx.conf

@@ -41,6 +41,6 @@ server {
     proxy_set_header Connection "upgrade";
     proxy_set_header Host $host;
 
-    proxy_pass http://immich_server:3000;
+    proxy_pass http://immich-server:3000;
   }
 }