fix(Card): missing style html attribute (#6559)

* refactor: 使用代码生成组件支持 @OnClick 写法

* fix: 修复 style 丢失问题

* Revert "refactor: 使用代码生成组件支持 @OnClick 写法"

This reverts commit c81d0a9.

Author: ArgoZhang

src/BootstrapBlazor/Components/Card/Card.razor.cs

@@ -128,6 +128,7 @@ public partial class Card
 
     private string? HeaderStyleString => CssBuilder.Default()
         .AddStyle("--bs-card-cap-padding-y", HeaderPaddingY)
+        .AddStyleFromAttributes(AdditionalAttributes)
         .Build();
 
     /// <summary>