chore(Route): update NotFound parameter (#7106)

* refactor: 精简 Route 页面

* chore: 更新编码

Author: ArgoZhang

src/BootstrapBlazor.Server/BootstrapBlazor.Server.csproj

@@ -1,4 +1,4 @@
-<Project Sdk="Microsoft.NET.Sdk.Web">
+<Project Sdk="Microsoft.NET.Sdk.Web">
 
   <PropertyGroup>
     <IsWebProject>true</IsWebProject>

src/BootstrapBlazor.Server/Components/Routes.razor

@@ -1,26 +1,6 @@
-@if (IsNet10OrGreater)
-{
-    <Router AppAssembly="@typeof(Program).Assembly" NotFoundPage="typeof(Pages.NotFound)">
-        <Found Context="routeData">
-            <RouteView RouteData="@routeData" DefaultLayout="@typeof(MainLayout)" />
-            <FocusOnNavigate RouteData="routeData" Selector="h3" />
-        </Found>
-    </Router>
-}
-else
-{
-    <Router AppAssembly="@typeof(Program).Assembly">
-        <Found Context="routeData">
-            <RouteView RouteData="@routeData" DefaultLayout="@typeof(MainLayout)" />
-            <FocusOnNavigate RouteData="routeData" Selector="h3" />
-        </Found>
-    </Router>
-}
-
-@code {
-    #if NET10_0_OR_GREATER
-    private bool IsNet10OrGreater => true;
-    #else
-    private bool IsNet10OrGreater => false;
-    #endif
-}
+<Router AppAssembly="@typeof(Program).Assembly" NotFoundPage="typeof(Pages.NotFound)">
+    <Found Context="routeData">
+        <RouteView RouteData="@routeData" DefaultLayout="@typeof(MainLayout)" />
+        <FocusOnNavigate RouteData="routeData" Selector="h3" />
+    </Found>
+</Router>