fix(AjaxService): update ToJson default value to true (#5457)

* fix: 更正默认值

* chore: bump version 9.4.1-beta01

src/BootstrapBlazor/BootstrapBlazor.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk.Razor">
 
   <PropertyGroup>
-    <Version>9.4.0</Version>
+    <Version>9.4.1-beta01</Version>
   </PropertyGroup>
 
   <ItemGroup>

src/BootstrapBlazor/Components/Ajax/AjaxOption.cs

@@ -31,5 +31,5 @@ public class AjaxOption
     /// 获得/设置 是否获得序列化 Json 结果 参数 默认为 true
     /// </summary>
     [NotNull]
-    public bool ToJson { get; set; }
+    public bool ToJson { get; set; } = true;
 }