Revert to port 4200 for frontend prod container

Author: XanderVertegaal

docker-compose.yml

@@ -101,7 +101,7 @@ services:
                 APP_VERSION: ${APP_VERSION:-0.0.0}
                 SOURCE_URL: https://github.com/CentreForDigitalHumanities/langpro-annotator
         healthcheck:
-            test: "curl -f localhost:8080"
+            test: "curl -f localhost:4200"
 
 volumes:
     postgres-data:

frontend/nginx.conf

@@ -1,7 +1,7 @@
 server {
   include /etc/nginx/mime.types;
 
-  listen 8080;
+  listen 4200;
 
   gzip on;
   gzip_vary on;