Running a screensaver is a very important security feature.
It is necessary that it always works and does not depend on the
state of the user's directories, so the screensaver run-script
should be placed in the system directory.
However, the locking process remains customizable because the user
script can be used too.
The service enables or disables swayidle inhibition depending on
whether any audio plays or not. It replaces the activation of
inhibition for fullscreen browser windows.
systemd integration for Sway is cool, but introduces a lot of
unexpected problems, such as race conditions. So switch back to classic
config-based systemd for autostarting services until all major problems
with systemd integration (sway-systemd) will resolved
This is also removes the ability to substitute system-wide Waybar config
with our own, because Waybar's systemd unit file doesn't provide
such functional. Default Waybar config is now placed in ~/.config/waybar/
