Polybar restarting is now done through its provided ipc interface,
instead of relying on a hardcoded script on the system.
Previously, the system needed access to a `polybar-launch` script.
Now, it invokes the `polybar-msg` command which is provided by polybar
itself.
It is important that polybar has ipc enabled in its configuration for
the restart to work.
Xresources processor is very customized and not useable for default
Xresources deployment. It depends on Xresources being available as an
XDG-compliant directory in $XDG_CONFIG_HOME/xresources.
Future work on this processor should start from the default xresources
deployment and allow customization to change it (e.g. through stylerrc
file, setting custom options and paths per processor)
