private static void CreateUser(Group adminGroup, ForumSystemContext forumSystemContext)
        {
            var user = new User()
            {
                FirstName = "John",
                LastName = "Snow",
                Nickname = "Bastard",
                Group = adminGroup
            };

            forumSystemContext.Users.Add(user);
        }
        private static Group GetOrCreateAdminGroup(ForumSystemContext forumSystemContext)
        {
            var adminGroup = forumSystemContext.Groups.FirstOrDefault(g => g.GroupName == "Admins");

            if (adminGroup == null)
            {
                adminGroup = new Group()
                {
                    GroupName = "Admins"
                };

                forumSystemContext.Groups.Add(adminGroup);
            }

            return adminGroup;
        }