refactor: 重构 AdminAlert 组件

src/blazor/admin/BootstrapAdmin.Web/Components/AdminAlert.razor

@@ -1,3 +1,12 @@
 <Block Condition="IsDemo">
-    <Alert Icon="fa fa-warning" Color="Color.Info">@Text</Alert>
+    <Alert Icon="fa fa-warning" Color="@Color">
+        @if (ChildContent != null)
+        {
+            @ChildContent
+        }
+        else
+        {
+            @Text
+        }
+    </Alert>
 </Block>

src/blazor/admin/BootstrapAdmin.Web/Components/AdminAlert.razor.cs

@@ -7,6 +7,12 @@ public partial class AdminAlert
     [Parameter]
     public string? Text { get; set; }
 
+    [Parameter]
+    public RenderFragment? ChildContent { get; set; }
+
+    [Parameter]
+    public Color Color { get; set; } = Color.Danger;
+
     private bool IsDemo { get; set; }
 
     [Inject]