Update getting started to include .NET 10.

Author: akorchev

RadzenBlazorDemos/Pages/GetStarted.razor

@@ -19,15 +19,15 @@
 
 <RadzenTabs SelectedIndex=@selectedIndex Change="@OnTabChange">
     <Tabs>
-        <RadzenTabsItem Text=".NET 8 &amp; 9">
+        <RadzenTabsItem Text=".NET 10 &amp; 9 &amp; 8">
             <div class="rz-py-0 rz-py-sm-4 rz-px-0 rz-px-sm-2 rz-px-lg-12">
             <RadzenAlert AlertStyle="AlertStyle.Info" Variant="Variant.Flat" Shade="Shade.Lighter" AllowClose="false" class="rz-mb-12">
 All interactive features of the Radzen Blazor components require interactivity of the container <code>.razor</code> file to be enabled or the <code>@@rendermode</code>
 attribute of the component to be set to one of the following values: <code>InteractiveServer</code>, <code>InteractiveAuto</code> or <code>InteractiveWebAssembly</code>.
 More info is available in the <RadzenLink Text="rendering mode article" Path="https://learn.microsoft.com/en-us/aspnet/core/blazor/components/render-modes?view=aspnetcore-8.0" target="_blank" /> from the official Blazor documentation.
             </RadzenAlert>
             <RadzenAlert AlertStyle="AlertStyle.Info" Variant="Variant.Flat" Shade="Shade.Lighter" AllowClose="false" class="rz-mb-12">
-                If you have upgraded your application to .NET 8 or .NET 9 follow the getting started instructions for the version you initially used - e.g.
+                If you have upgraded your application to .NET 8 .NET 9 or .NET 10 follow the getting started instructions for the version you initially used - e.g.
                 <RadzenLink Path="get-started/net7-server" Text=".NET 7" /> or <RadzenLink Path="get-started/net6-server" Text=".NET 6"/>.
 These instructions assume the new application layout which uses rendering modes and was introduced with .NET 8.
             </RadzenAlert>

RadzenBlazorDemos/Pages/ThemeServicePage.razor

@@ -25,7 +25,7 @@ The Radzen.Blazor library provides a built-in service that persists the current
 </RadzenText>
 <RadzenTabs SelectedIndex=@selectedIndex Change="@OnTabChange">
     <Tabs>
-        <RadzenTabsItem Text=".NET 8">
+        <RadzenTabsItem Text=".NET 8 &amp; 9 &amp; 10">
 @RegisterService
 @MainLayout
 <RadzenText TextStyle="TextStyle.H6" TagName="TagName.H3" class="rz-mt-12 rz-mb-4">3. Open the <code>App.razor</code> file of your application and add this code:</RadzenText>