Media: Prevents clipping of text when scaling image edit screen.

This reapplies [46354] clean as the previous commit had remnants of an unrelated patch.

Props sabernhardt, audrasjb, afercia.
See #47115.

Built from https://develop.svn.wordpress.org/trunk@46359


git-svn-id: http://core.svn.wordpress.org/trunk@46158 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-admin/includes/media.php

@@ -3207,7 +3207,7 @@ function edit_form_image_editor( $post ) {
 
 	?>
 
-	<label for="attachment_content"><strong><?php _e( 'Description' ); ?></strong>
+	<label for="attachment_content" class="attachment-content-description"><strong><?php _e( 'Description' ); ?></strong>
 	<?php
 
 	if ( preg_match( '#^(audio|video)/#', $post->post_mime_type ) ) {