Creating the page in C#

Before moving on, and to reinforce the fact that anything you can do in XAML you can do in C#, here is the version of LoginPage that we will be using in Forget Me Not (ForgetMeNotDemo) written in C# (in the repo, this page is called LoginCS):

using CommunityToolkit.Maui.Markup;
using static CommunityToolkit.Maui.Markup.GridRowsColumns;
namespace ForgetMeNot.View
{
    class LoginCS : ContentPage
    {
        public LoginCS(LoginViewModel viewModel)  [1]
        {
            BindingContext = viewModel;
            var activity = new ActivityIndicator() [2]
            {
              ...