👨‍🏫11 list screen и update site

1. flutter build web

2. cd build

3. cd web

4. git add .

5. git commit -m "Пишим коментарии"

6. git push origin main

import 'package:flutter/material.dart';
import 'package:flutter_lesson_mn_wn_fr/lesson19/lesson19.dart';


List<Widget> screens = [
  Lesson19(),
  Lesson19a(),
  Lesson23(),
];

class Lesson23 extends StatelessWidget {
  const Lesson23({super.key});

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(title: Text('Screens')),
      body: ListView.builder(
        itemCount: screens.length,
        shrinkWrap: true,
        itemBuilder: (context, index) {
          return ListTile(
            leading: CircleAvatar(),
            title: Text('Экран $index'),
            onTap: () {
              Navigator.push(
                context,
                MaterialPageRoute(builder: (context) => screens[index]),
              );
            },
          );
        },
      ),
    );
  }
}