SwiftUI Share Sheet, how to set the subject field in an email

When I am using share sheet to share content via email; the subject of the content is blank and I don't see a way to set the subject line.

I am trying to share some content using an email app, I would like to set the subject title in the email when the same time I pass my content to the email app.

import SwiftUI
import UIKit

struct ContentView: View {
    @State private var showShareSheet = false
    
    var body: some View {
        VStack(spacing: 20) {
            Text("Hello World")
            Button(action: {
                self.showShareSheet = true
            }) {
                Text("Share Me").bold()
            }
        }
        .sheet(isPresented: $showShareSheet) {
            ShareSheet(activityItems: ["Hello World"])
        }
    }
}

struct ContentView_Previews: PreviewProvider {
    static var previews: some View {
        ContentView()
    }
}





struct ShareSheet: UIViewControllerRepresentable {
    typealias Callback = (_ activityType: UIActivity.ActivityType?, _ completed: Bool, _ returnedItems: [Any]?, _ error: Error?) -> Void
    
    let activityItems: [Any]
    let applicationActivities: [UIActivity]? = nil
    let excludedActivityTypes: [UIActivity.ActivityType]? = nil
    let callback: Callback? = nil
    
    func makeUIViewController(context: Context) -> UIActivityViewController {
        let controller = UIActivityViewController(
            activityItems: activityItems,
            applicationActivities: applicationActivities)
        controller.excludedActivityTypes = excludedActivityTypes
        controller.completionWithItemsHandler = callback
        return controller
    }
    
    func updateUIViewController(_ uiViewController: UIActivityViewController, context: Context) {
        // nothing to do here
    }
}
struct ShareSheet_Previews: PreviewProvider {
    static var previews: some View {
        ShareSheet(activityItems: ["A string" as NSString])
    }
}