* Remove `format-charging` and `format-plugged` settings in favor of just using the graduated battery level icons. Also is a depreciated/removed Nerd Font icon. If we want to visually differentiate the charging state, CSS rules in `~/.config/waybar/style.css` might be a better way to handle that.
* Remove the commented lines because it is unlikely we will ever want these specific settings.
* Remove PBPbattery module and associated script. It is all commented out anyway. This feature has been built-in to Waybar for some time now; a custom script is no longer needed.
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