SystemTray (#3123)

* Added tray icon

packages/desktop/src/ipc.rs

@@ -11,6 +11,12 @@ pub enum UserWindowEvent {
     #[cfg(any(target_os = "windows", target_os = "linux", target_os = "macos"))]
     MudaMenuEvent(muda::MenuEvent),
 
+    #[cfg(any(target_os = "windows", target_os = "linux", target_os = "macos"))]
+    TrayIconEvent(tray_icon::TrayIconEvent),
+
+    #[cfg(any(target_os = "windows", target_os = "linux", target_os = "macos"))]
+    TrayMenuEvent(tray_icon::menu::MenuEvent),
+
     /// Poll the virtualdom
     Poll(WindowId),