Blazor Loading Page Component

[HolyOne]

Is there an existing issue for this?

• I have searched the existing issues

Is your feature request related to a problem? Please describe the problem.

I am trying to add a Loading screen with progress (and display which dll ' s are being loaded if possible)
Most examples are too complex and old or they need modification in both app.razor and MainLayout contents.

The reason I open this ticket is, a loading screen is common in most mid-large size projects.

Describe the solution you'd like

I think the Blazor template should come with an (optional) loading screen component and blazor.web.js should support it and inject it the necessary values (or at least a js event listener, or maybe a better native way).
So we can easily design our loading screens.

Additional context

No response