use coder/websocket for everything, get rid of gobwas.

supposedly it is faster, and anyway it's better to use it since we're already using it for wasm/js.

(previously named nhooyr/websocket).

connection_options_js.go

@@ -0,0 +1,15 @@
+package nostr
+
+import (
+	"crypto/tls"
+	"net/http"
+
+	ws "github.com/coder/websocket"
+)
+
+var emptyOptions = ws.DialOptions{}
+
+func getConnectionOptions(requestHeader http.Header, tlsConfig *tls.Config) *ws.DialOptions {
+	// on javascript we ignore everything because there is nothing else we can do
+	return &emptyOptions
+}