Apply suggestions from code review

Co-authored-by: Anton Vlasenko <43744263+anton-vlasenko@users.noreply.github.com>

lib/compat/wordpress-6.8/class-gutenberg-rest-post-archive-search-handler.php

@@ -35,7 +35,7 @@ public function __construct() {
 	 *     Associative array containing found IDs and total count for the matching search results.
 	 *
 	 *     @type int[]               $ids   Found post archive IDs.
-	 *     @type string|int|WP_Error $total Numeric string containing the number of post-type archives found, or WP_Error object.
+	 *     @type int $total The number of post-type archives found.
 	 * }
 	 */
 	public function search_items( WP_REST_Request $request ) {
@@ -79,7 +79,7 @@ public function search_items( WP_REST_Request $request ) {
 	 * @return array {
 	 *     Associative array containing fields for the post-archive based on the `$fields` parameter.
 	 *
-	 *     @type string    $id    Optional. Post Archive Slug.
+	 *     @type id     $id    Optional. Post Archive Slug.
 	 *     @type string $title Optional. Post Archive name.
 	 *     @type string $url   Optional. Post Archive permalink URL.
 	 * }