Fix for Steam not working after system update

See Steam failing to launch since systemd 253.5-2 update also github issue. After updating the system steam stops working with a core dump error of "Assertion 'device' failed at src/libsystemd/sd-device/device-private.c:103, function device_get_tags_generation(). Aborting.".

For me doing a sudo pacman -S lib32-libnm fixed the issue.