docs: add line highlight validation (#14380)

* docs: add line highlight validation

* add to all projects

* fixes

* fixes

* fix

* fixes

www/apps/resources/app/storefront-development/localization/page.mdx

@@ -50,11 +50,7 @@ Learn how to install and configure the JS SDK in the [JS SDK documentation](../.
 <CodeTabs group="store-request">
   <CodeTab label="React" value="react">
 
-export const highlights = [
-  ["18"], ["19"], ["20"], ["21"], ["22"]
-]
-
-  ```tsx highlights={highlights}
+  ```tsx highlights={[["18"], ["19"], ["20"], ["21"], ["22"]]}
   "use client" // include with Next.js 13+
 
   import { useEffect, useState } from "react"