refactor: make the whole thing more generic

modules/home-manager/desktops/hyprland/ags/js/bar/buttons/PowerMenu.js

@@ -0,0 +1,11 @@
+import Widget from "resource:///com/github/Aylur/ags/widget.js";
+import App from "resource:///com/github/Aylur/ags/app.js";
+import icons from "../../icons.js";
+import PanelButton from "../PanelButton.js";
+
+export default () =>
+  PanelButton({
+    class_name: "powermenu",
+    content: Widget.Icon(icons.powermenu.shutdown),
+    on_clicked: () => App.openWindow("powermenu"),
+  });