!2531 fix(#I4XVKU): Light component support custom class html attribute

* fix: Light 组件支持自定义 class 属性

src/BootstrapBlazor/Components/Light/Light.razor.cs

@@ -17,6 +17,7 @@ public partial class Light
     protected string? ClassString => CssBuilder.Default("light")
         .AddClass("flash", IsFlash)
         .AddClass($"light-{Color.ToDescriptionString()}", Color != Color.None)
+        .AddClassFromAttributes(AdditionalAttributes)
         .Build();
 
     /// <summary>