fix(Dialog): Fix scrolling issue in nested/multiple dialogs (#6786)

* Initial plan

* Implemented fix for multiple dialog scrolling issue

Co-authored-by: ArgoZhang <[email protected]>

* fix: 多级弹窗窗体内滚动

* Revert "Implemented fix for multiple dialog scrolling issue"

This reverts commit 42c4136.

* chore: bump version 9.10.3

---------

Co-authored-by: copilot-swe-agent[bot] <[email protected]>
Co-authored-by: ArgoZhang <[email protected]>
Co-authored-by: Argo Zhang <[email protected]>

Author: Copilot

src/BootstrapBlazor/BootstrapBlazor.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk.Razor">
 
   <PropertyGroup>
-    <Version>9.10.2</Version>
+    <Version>9.10.3</Version>
   </PropertyGroup>
 
   <ItemGroup>

src/BootstrapBlazor/Components/Dialog/Dialog.razor.cs

@@ -166,6 +166,11 @@ private async Task Show(DialogOption option)
 
     private static RenderFragment RenderDialog(int index, Dictionary<string, object> parameter) => builder =>
     {
+        if (index > 0)
+        {
+            parameter[nameof(ModalDialog.IsScrolling)] = true;
+        }
+
         builder.OpenComponent<ModalDialog>(100 + index);
         builder.AddMultipleAttributes(101 + index, parameter);
         builder.SetKey(parameter);