Firebase not running on web

main.dart

import 'package:firebase_auth/firebase_auth.dart';
import 'package:firebase_core/firebase_core.dart';
import 'package:flutter/material.dart';
import 'package:funtestic/firebase_options.dart';
import 'package:google_sign_in/google_sign_in.dart';

Future<void> main() async {
  WidgetsFlutterBinding.ensureInitialized();

  await Firebase.initializeApp(
    options: DefaultFirebaseOptions.currentPlatform,
  );

  runApp(const MyApp());
}

class MyApp extends StatelessWidget {
  const MyApp({Key? key}) : super(key: key);

  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: const MyHomePage(title: 'Flutter Demo Home Page'),
    );
  }
}

class MyHomePage extends StatefulWidget {
  const MyHomePage({Key? key, required this.title}) : super(key: key);

  final String title;

  @override
  State<MyHomePage> createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  final GoogleSignIn _googleSignIn = GoogleSignIn();

  Future<void> _signInWithGoogle() async {
    try {
      GoogleSignInAccount? googleSignInAccount = await _googleSignIn.signIn();

      if (googleSignInAccount != null) {
        final GoogleSignInAuthentication googleSignInAuthentication =
            await googleSignInAccount.authentication;

        final AuthCredential credential = GoogleAuthProvider.credential(
          accessToken: googleSignInAuthentication.accessToken,
          idToken: googleSignInAuthentication.idToken,
        );

        await FirebaseAuth.instance.signInWithCredential(credential);

        String token = await FirebaseAuth.instance.currentUser!.getIdToken();

        print("you've logged");
      }
    } catch (error) {}
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text(widget.title),
      ),
      body: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: <Widget>[
            ElevatedButton(
              child: const Text("log in"),
              onPressed: _signInWithGoogle,
            )
          ],
        ),
      ),
    );
  }
}