Latest changes to make swhkd work in Arch terminal

[alexindigo]

Making PR just to expose commit to the AUR package.

[alexindigo]

cc @manthanabc this makes it works for me.

Combined #254 and #270, on top of latest changes here.

And used setuid approach:

sudo chown root:root swhkd
sudo chmod u+s swhkd

with

$ sudo vim /usr/local/bin/swhkd-service.sh

#!/usr/bin/env bash

killall swhks

swhks & swhkd

And running it as

$ systemctl --user enable swhkd.service