public IActionResult MarkSolution([FromForm] VoteResponse r)
        {
            _service.MarkSolution(r.ResponseId);
            var origQ        = _service.GetQuestionById(r.QuestionId);
            var qResponses   = _service.GetRelatedResponses(origQ.Id);
            var viewQuestion = new QuestionForView
            {
                Id         = origQ.Id,
                Title      = origQ.Title,
                Body       = origQ.Body,
                UserId     = origQ.UserId,
                Popularity = origQ.Popularity,
                Responses  = qResponses
            };

            return(View("Details", viewQuestion));
        }