public static void SetInitialDatas(this IApplicationBuilder app)
        {
            using var context = RepositoryContext.Build();

            var user = context.Users.FirstOrDefault(f => f.Login == "demo@demo");

            if (user != null)
            {
                return;
            }

            user = new User()
            {
                Login    = "******",
                Password = "******",
                Email    = "*****@*****.**",
            };
            user.Password = user.GetHash();
            context.Add(user);
            context.SaveChanges();
        }