update SDL3 to 3.4.10.

libs/SDL3/examples/template-homepage.html

@@ -6,6 +6,9 @@
     <meta name="viewport" content="width=device-width, initial-scale=1" />
     <title>@project_name@ Examples</title>
     <link rel="icon" href="/@project_name@/thumbnail.png" type="image/png" />
+
+@preload_images_html@
+
     <link
       rel="stylesheet"
       type="text/css"
@@ -30,7 +33,7 @@
     <main>
       <nav class="breadcrumb">
         <ul>
-          <li><a href="/@project_name@">@project_name@</a></li>
+          <li><a href="/@project_name@/">@project_name@</a></li>
         </ul>
       </nav>
       <h1>@project_name@ examples</h1>