[enchancement] Auto reload when config file changes

[manthanabc]

We could use inotify to set up a watcher for changes in the config file in the swhkd daemon. After the config file is loaded, whenever the config file changes, we call load_config. This should be a simple change.

We could also add a new argument (-r) to enable it or have it enabled by default.

[newtoallofthis123]

That is an awesome idea!
The config file reload can also probably be triggered pressing a keyboard shortcut or the -r flag.
Will be looking into this!

[manthanabc]

triggered pressing a keyboard shortcut

hotkey based reload could just be part of a default config file like

super + r
	pkill -HUP swhkd

(this way user can also remove it or change it if they want)
for the auto reloading i can create a pull request for it, if you would assign this to me