Small IJSRuntime extension method to load CSS file at runtime

ext.cs

public static class Utils
{
	public static async ValueTask LoadCss(this IJSRuntime jsRuntime, string cssUrl)
	{
		await jsRuntime.InvokeVoidAsync("eval",/*lang=javascript*/$$"""
			import(URL.createObjectURL(new File([`import sheet from '{{cssUrl}}' assert { type: 'css' }; document.adoptedStyleSheets = [sheet];`], `./{{Guid.NewGuid()}}.js`, { type: "text/javascript" }))).then(_=>_);
			""");
	}
}