feat(pkarr): export same structs from wasm as in native

Author: Nuhvi

pkarr/src/lib.rs

@@ -48,3 +48,6 @@ if_dht! {
 
 #[cfg(feature = "relay")]
 pub mod relay;
+
+#[cfg(target_arch = "wasm32")]
+pub use relay::{Client, ClientBuilder, Settings};