Apply suggested fix to shared/Transformers/PostTransformer.php from Copilot Autofix

Co-authored-by: Copilot Autofix powered by AI <223894421+github-code-quality[bot]@users.noreply.github.com>

Author: armanist

shared/Transformers/PostTransformer.php

@@ -26,10 +26,10 @@ class PostTransformer implements TransformerInterface
 {
     /**
      * Transforms the post data
-     * @param $item
+     * @param object $item
      * @return array
      */
-    public function transform($item): array
+    public function transform(object $item): array
     {
         return [
             'uuid' => $item->uuid,