cli: allow `rad node config` without running node — heartwood

rad node config will error if the node is not running.

Since it is a local file, allow the command to succeed if the node is not running.

 use radicle::node::Handle as _;
 use radicle::node::{Address, Node, NodeId, PeerAddr};
 use radicle::prelude::RepoId;
 use radicle::profile;
 use crate::terminal as term;
 use crate::terminal::args::{Args, Error, Help};

         Operation::Connect { addr, timeout } => {
             control::connect(&mut node, addr.id, addr.addr, timeout)?
         }
         Operation::Config { addresses } => {
         Operation::Config { addresses } if node.is_running() => {
             if addresses {
                 let cfg = node.config()?;
                 for addr in cfg.external_addresses {

                 control::config(&node)?;
             }
         }
         Operation::Config { .. } => {
             let config = profile::Config::load(profile.config().as_path())?;
             println!("{}", serde_json::to_string_pretty(&config.node)?);
         }
         Operation::Db { args } => {
             commands::db(&profile, args)?;
         }