Updated the `OnAfterRenderAsync` method in `Index.razor` to navigate to `/receiver` instead of `/reportviewer`. Removed the sidebar containing the `<NavMenu />` component in `MainLayout.razor` and adjusted the `<main>` tag to directly contain the content.
Simplified the `@page` directive by removing redundant entries.
Replaced the introductory section with a centered card layout
featuring a document icon, heading, description, and a
`DxLoadingPanel` with a spinner for redirection feedback.
Removed the "Helpful Resources" section with external links.
Added a new `@code` block to handle redirection logic using
`OnAfterRenderAsync`, which redirects to `/reportviewer` after
a 1200ms delay.
