menu.rs

let new_todo = CustomMenuItem::new("new".to_string(), "New ToDo");
let close = CustomMenuItem::new("quit".to_string(), "Quit");
let submenu = Submenu::new("File", Menu::new().add_item(new_todo).add_item(close));
let menu = Menu::new()
    .add_native_item(MenuItem::Copy)
    .add_item(CustomMenuItem::new("hide", "Hide"))
  .add_submenu(submenu);