fix: XMLRPC-Port aus externem Port-Mapping entfernen, Doku anpassen

docker-compose.yml

@@ -12,7 +12,6 @@ services:
       - "${SERVER_PORT:-2350}:${SERVER_PORT:-2350}/tcp"
       - "${SERVER_PORT:-2350}:${SERVER_PORT:-2350}/udp"
       - "${SERVER_P2P_PORT:-3450}:${SERVER_P2P_PORT:-3450}/tcp"
-      - "${SERVER_XMLRPC_PORT:-5000}:${SERVER_XMLRPC_PORT:-5000}/tcp"
       - "80:80/tcp"
     env_file:
       - .env