REST API: Persist attributes for attachment links

In [43437], the link definition implementation caused attachment links to be unexpectedly nested under an attributes key. This changeset restores the prior behavior.

Merges [43681] to trunk.

Props TimothyBlynJacobs, danielbachhuber.
Fixes #44750.


git-svn-id: https://develop.svn.wordpress.org/trunk@43973 602fd350-edb4-49c9-b593-d223f7449a82

src/wp-includes/media-template.php

@@ -96,7 +96,7 @@ function wp_underscore_video_template() {
 	<# if ( w ) { #>width="{{ w }}"<# } #>
 	<# if ( h ) { #>height="{{ h }}"<# } #>
 	<?php
-	$props = array(
+	$props       = array(
 		'poster'  => '',
 		'preload' => 'metadata',
 	);