Posts, Post Types: Post title should not be translatable in get_user_data_from_wp_global_styles method.

In [52280] `wp_template_part` and `wp_template` posts, made the title of the post created not translatable. This was changed [54186] by mistake. This commit reverts that change.

Follow up to [54186], [52280].

Props mukesh27, kebbet.
See #55392.

git-svn-id: https://develop.svn.wordpress.org/trunk@54246 602fd350-edb4-49c9-b593-d223f7449a82

Author: spacedmonkey

src/wp-includes/class-wp-theme-json-resolver.php

@@ -342,7 +342,7 @@ public static function get_user_data_from_wp_global_styles( $theme, $create_post
 				array(
 					'post_content' => '{"version": ' . WP_Theme_JSON::LATEST_SCHEMA . ', "isGlobalStylesUserThemeJSON": true }',
 					'post_status'  => 'publish',
-					'post_title'   => __( 'Custom Styles' ),
+					'post_title'   => 'Custom Styles', // Do not make string translatable, see https://core.trac.wordpress.org/ticket/54518.
 					'post_type'    => $post_type_filter,
 					'post_name'    => sprintf( 'wp-global-styles-%s', urlencode( $stylesheet ) ),
 					'tax_input'    => array(