public async Task <IActionResult> Edit(int?id)
        {
            var session = HttpContext.Session.GetString("UserName");

            if (string.IsNullOrEmpty(session))
            {
                return(RedirectToAction("Index", "Inicio"));
            }

            if (id == null)
            {
                return(NotFound());
            }

            var publicacion = await _publicacionRepository.GetPublicacionById(id);

            if (publicacion == null)
            {
                return(NotFound());
            }

            return(View(publicacion));
        }