On https://xqemu.com/input/ we explain how the Xbox ports are arranged. However, in https://xqemu.com/getting-started/#using-the-command-line-interface we only use `-usb -device usb-xbox-gamepad` without specifying a port. This can lead to input being unresponsive in some titles. We should use a proper configuration for input. *(Note that the above URLs for the CLI might move, as suggested in #54)*