Follows the video core PR. fmt doesn't require casts for enum classes
anymore, so we can remove quite a few casts.
Co-Authored-By: LC <712067+lioncash@users.noreply.github.com>
udp_server might not be created due to error (occupied port etc.), in which case its destructor and thread-ending call chain will not be excuted in Server::Stop. However, the ending packet still need to be send no matter udp is on or not, so move it to Server::Stop