private async void btnEnviar_Clicked(object sender, EventArgs e)
        {
            var people = new People
            {
                Name  = "Darlan Silva 2",
                Email = "*****@*****.**"
            };

            people = await RestService.CreateOrUpdatePerson(people);

            var survei = new SurveiResponse
            {
                Comment = this.edtComentario.Text,
                Score   = this._score,
                Person  = people.ID
            };
            await RestService.SendSurvei(survei);

            PopupNavigation.Instance.PopAllAsync();
            await PopupNavigation.PushAsync(new PopupFeedbackView());
        }