Restructure, move launcher to astal gtk4

config/ags/launcher/app.ts

@@ -1,9 +1,10 @@
-import { App } from "astal/gtk3"
+import { App } from "astal/gtk4"
 import style from "./style.scss"
-import Applauncher from "./ui/AppLauncher"
+import Bar from "./widget/Bar"
 
 App.start({
-    instanceName: "launcher",
     css: style,
-    main: Applauncher,
-});
+    main() {
+        App.get_monitors().map(Bar)
+    },
+})