fix: correct real-world deployment details found while writing the stacks entry

- docker-compose.yml used "websecure" as the entrypoint name; the
  actual falcon_network convention (confirmed against the real
  traefik/compose.yml) is "web-secure". Also switched the networks
  block from a hardcoded falcon_network to the same
  compose_network-aliased ${NETWORK_NAME} pattern already used in the
  Traefik labels, instead of only half-respecting that variable.
- config.yml gave the Traefik widget an href, but this deployment runs
  with --api.dashboard=false - there's no dashboard to link to.

config/config.yml

@@ -21,10 +21,10 @@ groups:
       - type: docker
         name: Traefik
         containerName: traefik
-        href: https://${TRAEFIK_HOST_TRAEFIK}
         interval: 10s
+        # No href: the dashboard is disabled (--api.dashboard=false).
         # Swap for a `traefik` widget (router/entrypoint/middleware view)
-        # once the API is enabled - see Traefik's --api.dashboard docs.
+        # if the API gets enabled - see Traefik's --api.dashboard docs.
 
       - type: docker
         name: Coolify