add link to logo in rest index

Author: ntsekouras

lib/init.php

@@ -199,9 +199,17 @@ function register_site_icon_url( $response ) {
  * @return WP_REST_Response
  */
 function register_site_logo_to_rest_index( $response ) {
-	$data              = $response->data;
-	$data['site_logo'] = get_theme_mod( 'custom_logo' );
-	$response->set_data( $data );
+	$site_logo_id                = get_theme_mod( 'custom_logo' );
+	$response->data['site_logo'] = $site_logo_id;
+	if ( $site_logo_id ) {
+		$response->add_link(
+			'https://api.w.org/featuredmedia',
+			rest_url( 'wp/v2/media/' . $site_logo_id ),
+			array(
+				'embeddable' => true,
+			)
+		);
+	}
 	return $response;
 }