No syntax highlighting/autocomplete for generic component usage

[MarvinKlein1508]

There is no syntax highlighting or autocompletion features for the type definition on genric components.

Conser this simple generic component:

@typeparam TItem

<h3>TestComponent</h3>

@code {
    [Parameter]
    public TItem? MyItem { get; set; }
}

In Visual Studio (bot normal and Preview):