private async void OnLoginClicked(object obj)
{
Preferences.Set("UserEmail", EmailLogin);
bool success = await _userDetails.VerifyLogin(EmailLogin, PasswordLogin);
if (success)
{
await Shell.Current.GoToAsync($"//{nameof(HomePage)}");
}
else
{
await App.Current.MainPage.DisplayAlert("Failure", "Username And Password Does Not Exist", "Try Again");
}
}