docs: added tests for components in api-reference project (#14428)

* add tests (WIP)

* added test for h2

* finished adding tests

* fixes

* fixes

* fixes

www/apps/api-reference/components/DownloadFull/index.tsx

@@ -1,7 +1,8 @@
 "use client"
 
+import React from "react"
 import { Button } from "docs-ui"
-import { useArea } from "../../providers/area"
+import { useArea } from "@/providers/area"
 import Link from "next/link"
 
 const DownloadFull = () => {
@@ -9,7 +10,12 @@ const DownloadFull = () => {
 
   return (
     <Button variant="secondary">
-      <Link href={`/download/${area}`} download target="_blank">
+      <Link
+        href={`/download/${area}`}
+        download
+        target="_blank"
+        data-testid="download-full-link"
+      >
         Download OpenApi Specs Collection
       </Link>
     </Button>