private async void SignInBtn_Clicked(object sender, EventArgs e)
{
YostocksApiServices apiService = new YostocksApiServices();
bool response = await apiService.LoginUser(EntEmail.Text, EntPassword.Text);
if (!response)
{
await DisplayAlert("Error", "Wrong Username or Password", "Cancel");
}
else if (response)
{
Navigation.InsertPageBefore(new ParentTabbedPage(), this);
await Navigation.PopAsync();
}
}
