public void Display()
        {
            foreach (var user in _userReader.ReadAll())
            {
                _repo.SaveUser(user.User, user.Follows);
            }

            foreach (var tweet in _tweetReader.ReadAll())
            {
                _repo.SaveTweet(tweet);
            }

            _view.Display(_repo.FetchUserFeeds().OrderBy(uf => uf.User.ToString()));
        }