polybar

With the new module action system, we can easily deprecate the old way of triggering hooks in the ipc module and replace it with a module action.

This has several advantages:

• Cleaner way of handling messages (just register for certain action names)
• Hooks can easily be triggered by click commands using the action syntax (``#module.name`)
• Use the same system as all other modules

I p

The repo is called polybar-pulseaudio-control but that's just because I use Polybar and I created the script for my own. But I'd like to rename it to just pulseaudio-control. The core of the script can be perfectly re-used for other status bars. I would introduce a --status-bar flag that sets the "compatibility mode" for that. If anyone wants to give it a try, leave a comment here!