What happened to iOS export option?

import UIKit
import SwiftUI
// Add WebKit
import WebKit

// Add WKNavigationDelegate, WKUIDelegate for navigation and ui delegation
class DocumentBrowserViewController: UIDocumentBrowserViewController, UIDocumentBrowserViewControllerDelegate, WKNavigationDelegate, WKUIDelegate {

    var webView: WKWebView!

    // This gets called when loading the WKWebView
    override func loadView() {
        super.loadView()
    
        webView = WKWebView()
    
        let webViewCofig = WKWebViewConfiguration()
        webViewCofig.dataDetectorTypes = []
        webViewCofig.allowsInlineMediaPlayback = true
        webViewCofig.mediaTypesRequiringUserActionForPlayback = []
        webView = WKWebView(frame: view.frame, configuration: webViewCofig)
        webView.configuration.preferences.setValue(true, forKey: "allowFileAccessFromFileURLs")
    
    }

    // Called after the WebView was created
    override func viewDidLoad() {
        super.viewDidLoad()
    
        let htmlPath = Bundle.main.url(forResource: "index", withExtension: "html", subdirectory: "www")!
        webView.loadFileURL(htmlPath, allowingReadAccessTo: htmlPath)
    
        webView.navigationDelegate = self
        webView.uiDelegate = self
        view = webView
    }

    // Called after HTML was loaed
    func webView(_ webView: WKWebView, didFinish navigation: WKNavigation!) {
    
        // This will output the content of BODY in XCODE debug (to prove its called after canvas was drawn)
        webView.evaluateJavaScript("document.body.innerHTML") { value, error in
            print(value as? String ?? "")
        }
    
        // Simulating click() to body... but didn't help
        webView.evaluateJavaScript("document.body.click()") {value, error in print(error ?? "")
        }

      //webView.stopLoading()
       // If you uncomment this, MZ will display something like 
       // Failed to load
       // js/libs/effekseer.wasm
    }

    // This is to allow Alert()
    func webView(_ webView: WKWebView, runJavaScriptAlertPanelWithMessage message: String, initiatedByFrame frame: WKFrameInfo, completionHandler: @escaping () -> Void) {
        // alert
        let alertController = UIAlertController(title: "", message: message, preferredStyle: .alert)
        let action = UIAlertAction(title: "OK", style: .default) { _ in
            completionHandler()
        }
        alertController.addAction(action)
        present(alertController, animated: true, completion: nil)
    }

    /* Below this is the default code */

    // MARK: UIDocumentBrowserViewControllerDelegate

let webViewCofig = WKWebViewConfiguration()
//new stuff below
webViewCofig.dataDetectorTypes = []
webViewConfig.allowsInlineMediaPlayback = true
//end of new stuff
webViewConfig.mediaTypesRequiringUserActionForPlayback = []
webView = WKWebView(frame: view.frame, configuration: webViewCofig)
webView.configuration.preferences.setValue(true, forKey: "allowFileAccessFromFileURLs")

node --version
npm --version

sudo npm install -g @ionic/cli
sudo npm install cordova-plugin-nativestorage
sudo npm install @ionic-native/native-storage
sudo npm install @capacitor/ios@latest
sudo npm audit fix

mkdir ~/Documents/rmmz
cd ~/Documents/rmmz
ionic start mztest blank

ionic integrations enable capacitor
npx cap init mztest com.rmmz.mztest

npx cap add ios
npx cap sync ios

npx cap open ios

SceneManager.isGameActive = function() {
    // [Note] We use "window.top" to support an iframe.
    try {
        return window.top.document.hasFocus();
    } catch (e) {
        // SecurityError
        return true;
    }
};

SceneManager.isGameActive = function() {
    return true;
    // [Note] We use "window.top" to support an iframe.
    try {
        return window.top.document.hasFocus();
    } catch (e) {
        // SecurityError
        return true;
    }
};

SceneManager.isGameActive = function() {
    return true;
};