feat: Create power buttons widget

[JonAnderBeroz]

Widget to be able to shutdown , restart or lock the computer

[Pimiovdb]

how do you style? can you give some documentation?

[Welpyes]

how do you style? can you give some documentation?

you can do this by having a custom widget in the config.yaml

  shutdown:
    type: "yasb.custom.CustomWidget"
    options: 
      label: "\uf011"
      label_alt: "\uf011"
      class_name: "shutdown-button"
      callbacks:
        on_left: "exec cmd /c shutdown /s /t 5"

this shuts down your computer by clicking on it, but i suggest putting the callback as on_right instead of on_left to avoid accidents