refactor: 增加滚动行为参数

Author: ArgoZhang

src/BootstrapBlazor/Components/SelectGeneric/SelectGeneric.razor

@@ -8,7 +8,7 @@
 {
     <BootstrapLabel required="@Required" for="@InputId" ShowLabelTooltip="ShowLabelTooltip" Value="@DisplayText" />
 }
-<div @attributes="AdditionalAttributes" id="@Id" class="@ClassString">
+<div @attributes="AdditionalAttributes" id="@Id" class="@ClassString" data-bb-scroll-behavior="@ScrollIntoViewBehaviorString">
     <CascadingValue Value="this" IsFixed="true">
         @Options
     </CascadingValue>

src/BootstrapBlazor/Components/SelectGeneric/SelectGeneric.razor.cs

@@ -261,6 +261,8 @@ public partial class SelectGeneric<TValue> : ISelectGeneric<TValue>, IModelEqual
         .AddClass(SearchLoadingIcon)
         .Build();
 
+    private string? ScrollIntoViewBehaviorString => ScrollIntoViewBehavior == ScrollIntoViewBehavior.Smooth ? null : ScrollIntoViewBehavior.ToDescriptionString();
+
     /// <summary>
     /// 当前选择项实例
     /// </summary>