How can I disable or remove a menu item in a SwiftUI macOS app? For example, the Print... item is shown in the File menu by default. But my application does not use printing features. How would I remove the print item from the file menu in a SwiftUI Mac app?

I tried the following in AppDelegate.swift but it doesn't work:

import Cocoa
import SwiftUI

@NSApplicationMain
class AppDelegate: NSObject, NSApplicationDelegate {
    
    func applicationWillFinishLaunching(_ notification: Notification) {
        if let menu = NSApplication.shared.mainMenu {
            menu.item(withTitle: "File")?.submenu?.item(withTitle: "Print...")?.state = NSControl.StateValue.off
        }
    }
    
}