* call toJSON of keys in gateway when using erlpack

* dont send bitrate/etc as null when should be undefined
* set user flags to number instead of string
* send empty 'threads' in identify when not using new state v2

src/api/routes/guilds/#guild_id/index.ts

@@ -161,7 +161,7 @@ router.patch(
 		const data = guild.toJSON();
 		// TODO: guild hashes
 		// TODO: fix vanity_url_code, template_id
-		delete data.vanity_url_code;
+		// delete data.vanity_url_code;
 		delete data.template_id;
 
 		await Promise.all([