Add WEB_PORT environment variable for lighttpd

docker-compose-syno-host.yaml

@@ -24,6 +24,7 @@ services:
       - REV_SERVER_CIDR=${REV_SERVER_CIDR:-192.168.0.0/16}
       - WEBPASSWORD=${WEBPASSWORD:-hackme}
       - WEBTHEME=${WEBTHEME:-default-dark}
+      - WEB_PORT=${WEB_PORT:-8080}
       - PIHOLE_DNS_=${PIHOLE_DNS_:-127.0.0.1#5335}
       - CORS_HOSTS=${CORS_HOSTS:-pi.hole}
       - ADMIN_EMAIL=${ADMIN_EMAIL}