refactor: 增加 style 标签

Author: ArgoZhang

src/BootstrapBlazor/Components/ValidateForm/ValidateForm.razor

@@ -5,7 +5,10 @@
 @if (Model != null)
 {
     <CascadingValue Value="this" IsFixed="true">
-        <EditForm Model="@Model" @attributes="@AdditionalAttributes" id="@Id" data-bb-dissubmit="@DisableAutoSubmitString" data-bb-invalid-result="@ShowAllInvalidResultString" OnValidSubmit="@OnValidSubmitForm" OnInvalidSubmit="@OnInvalidSubmitForm">
+        <EditForm @attributes="@AdditionalAttributes" id="@Id" Model="@Model" 
+                    data-bb-dissubmit="@DisableAutoSubmitString" data-bb-invalid-result="@ShowAllInvalidResultString"
+                    style="@StyleString"
+                    OnValidSubmit="@OnValidSubmitForm" OnInvalidSubmit="@OnInvalidSubmitForm">
             <BootstrapBlazorDataAnnotationsValidator @ref="Validator" />
             @ChildContent
         </EditForm>

src/BootstrapBlazor/Components/ValidateForm/ValidateForm.razor.cs

@@ -130,6 +130,10 @@ public partial class ValidateForm
 
     private string? ShowAllInvalidResultString => ShowAllInvalidResult ? "true" : null;
 
+    private string? StyleString => CssBuilder.Default()
+        .AddClass($"--bb-row-label-width: {LabelWidth}px;", LabelWidth.HasValue)
+        .Build();
+
     /// <summary>
     /// OnParametersSet 方法
     /// </summary>