refactor: 移除测试代码

Author: ArgoZhang

src/components/BootstrapBlazor.Tasks.Dashboard/TaskDashboard.razor

@@ -31,7 +31,7 @@
             </TableTemplateColumn>
             <TableTemplateColumn Text="@Localizer["Exception"]">
                 <Template Context="v">
-                    @if (v.Row.Exception == null)
+                    @if (v.Row.Exception != null)
                     {
                         <Button Color="Color.Danger" Size="Size.ExtraSmall" Icon="fa-solid fa-exclamation-circle"
                                 OnClickWithoutRender="() => OnShowException(v.Row, v.Row.Exception)"></Button>

src/components/BootstrapBlazor.Tasks.Dashboard/TaskDashboard.razor.cs

@@ -108,7 +108,6 @@ private async Task OnLog(IScheduler scheduler)
 
     private async Task OnShowException(IScheduler scheduler, Exception ex)
     {
-        ex = new Exception("test");
         var option = new DialogOption()
         {
             Class = "modal-dialog-task-ex",