feat: add tray and time widget

widget/bar/tray.tsx

@@ -0,0 +1,18 @@
+import { bind } from "astal";
+import AstalTray from "gi://AstalTray";
+
+export const Tray = () => {
+  const tray = AstalTray.get_default();
+
+  for (const item of tray.get_items()) {
+    print(item.title);
+  }
+
+  return (
+    <box cssClasses={["tray"]}>
+      {bind(tray, "items").as((items) =>
+        items.map((item) => <image gicon={bind(item, "gicon")} />),
+      )}
+    </box>
+  );
+};