ci: update Traefik router rule to use DOMAIN variable and set load balancer port to 80

Author: cmnemoi

compose.prod.yaml

@@ -9,10 +9,10 @@ services:
       - traefik-proxy
     labels:
       - traefik.enable=true
-      - traefik.http.routers.website.rule=Host(`monster-hotel.cmnemoi.com`)
+      - traefik.http.routers.website.rule=Host(`${DOMAIN:-monster-hotel.cmnemoi.com}`)
       - traefik.http.routers.website.entrypoints=websecure
       - traefik.http.routers.website.tls.certresolver=letsencrypt
-      - traefik.http.services.website.loadbalancer.server.port=5173
+      - traefik.http.services.website.loadbalancer.server.port=80
 
 networks:
   traefik-proxy: