Add note about Vite support in Laravel to config

Author: Kovah

src/config/backpack/base.php

@@ -68,6 +68,7 @@
     ],
 
     // CSS files that are loaded in all pages, using Laravel's @vite() helper
+    // Please note that support for Vite was added in Laravel 9.19. Earlier versions are not able to use this feature.
     'vite_styles' => [ // resource file_path
         // 'resources/css/app.css' => '',
     ],