Add AGS notification, quick settings, and sysmonitor widgets

ags/app.ts

@@ -1,10 +1,30 @@
 import app from "ags/gtk3/app"
 import style from "./style.css"
 import Media from "./widget/Media"
+import NotificationCenter from "./widget/Notifications"
+import QuickSettings from "./widget/QuickSettings"
+import SysMonitor from "./widget/SysMonitor"
+import WallPicker from "./widget/WallPicker"
+
+const SHOW_DESKTOP_MEDIA = false
+
+function start(name: string, build: () => unknown) {
+  try {
+    build()
+  } catch (error) {
+    console.error(`Failed to start widget "${name}":`, error)
+  }
+}
 
 app.start({
   css: style,
   main() {
-    app.get_monitors().map(Media)
+    if (SHOW_DESKTOP_MEDIA) {
+      app.get_monitors().map(Media)
+    }
+    start("notification-center", NotificationCenter)
+    start("quick-settings", QuickSettings)
+    start("sys-monitor", SysMonitor)
+    start("wall-picker", WallPicker)
   },
-})
+})