feat: publish initial data when adding a new discovery service

Author: dignifiedquire

iroh/src/discovery.rs

@@ -429,6 +429,7 @@ impl ConcurrentDiscovery {
                 service.publish(data)
             }
         }
+        self.services.write().expect("poisoned").push(service);
     }
 
     /// Is there any services configured?
@@ -470,7 +471,6 @@ impl Discovery for ConcurrentDiscovery {
 
     fn resolve(&self, node_id: NodeId) -> Option<BoxStream<Result<DiscoveryItem, DiscoveryError>>> {
         let services = self.services.read().expect("poisoned");
-        dbg!(services.len());
         let streams = services
             .iter()
             .filter_map(|service| service.resolve(node_id));