public IAccount SignInUser(LoginDTO user)
        {
            var searchedUser = GetAllAccounts()
                               ?.FirstOrDefault(o =>
                                                o.Student.Email == user.Email ||
                                                o.Password == user.Password);

            if (searchedUser != null)
            {
                LoginHelperService.LoginUser(searchedUser);
            }
            return(searchedUser);
        }
 public void SignOutUser()
 {
     LoginHelperService.LogOutUser();
 }