Deimplement Authentication

To deimplement the authentication the following classes need to be deleted or modified.

Delete

class AuthenticationRepository

class AppleSignInButton

class GoogleSignInButton

class ProfilePage

class PersonalData1

class SignInPage 

class SignUpPage

class Resetpasswordpopup

Modify

class AuthenticationWrapper

• remove the WidgetsBinding.instance.addPostFrameCallback() function from the initState() method

• replace bool loading = true; with bool loading = false;

class UserDataWrapper

• remove the WidgetsBinding.instance.addPostFrameCallback() function from the initState() method

• remove UserRepository.userDataListener?.cancel(); UserRepository.userDataListener = null; from the dispose() method

• replace bool loading = true; with bool loading = false;