Refactor DownloaderMixin to only call original.call once

Should be fine either way, but just in case.

Author: Alexander01998

src/main/java/net/wurstclient/mixin/DownloaderMixin.java

@@ -62,6 +62,7 @@ private Path wrapResolve(Path instance, String filename,
 		if(uuid == null)
 			uuid = Uuids.getOfflinePlayerUuid(session.getUsername());
 
-		return original.call(instance.resolve(uuid.toString()), filename);
+		return result.getParent().resolve(uuid.toString())
+			.resolve(result.getFileName());
 	}
 }