Create a simple Flutter app that has two textformfields. The first textfield should be used to enter the email of the user. The second textfield should be used to enter the password of the user. On successful login, the user should be redirected to a new page that displays the email of the user. The user should be able to logout of the app. Create a login button that when clicked, logs the user in. Create a logout button that when clicked, logs the user out. Use Firebase authentication to authenticate the user.