Restructure, move launcher to astal gtk4

config/ags/launcher/widget/Bar.tsx

@@ -0,0 +1,36 @@
+import { App, Astal, Gtk, Gdk } from "astal/gtk4"
+import { Variable } from "astal"
+
+const time = Variable("").poll(1000, "date")
+
+export default function Bar(gdkmonitor: Gdk.Monitor) {
+    const { TOP, LEFT, RIGHT } = Astal.WindowAnchor
+
+    return <window
+        visible
+        cssClasses={["Bar"]}
+        gdkmonitor={gdkmonitor}
+        exclusivity={Astal.Exclusivity.EXCLUSIVE}
+        anchor={TOP | LEFT | RIGHT}
+        application={App}>
+        <centerbox cssName="centerbox">
+            <button
+                onClicked="echo hello"
+                hexpand
+                halign={Gtk.Align.CENTER}
+            >
+                Welcome to AGS!
+            </button>
+            <box />
+            <menubutton
+                hexpand
+                halign={Gtk.Align.CENTER}
+            >
+                <label label={time()} />
+                <popover>
+                    <Gtk.Calendar />
+                </popover>
+            </menubutton>
+        </centerbox>
+    </window>
+}