Editor: Update the WordPress packages to the Gutenberg 16.7 RC2 version.

This patch, somewhat small brings a lot to WordPress. 
This includes features like:

 - DataViews.
 - Customization tools like box shadow, background size and repeat.
 - UI improvements in the site editor. 
 - Preferences sharing between the post and site editors.
 - Unified panels and editors between post and site editors.
 - Improved template mode in the post editor.
 - Iterations to multiple interactive blocks.
 - Preparing the blocks and UI for pattern overrides.
 - and a lot more.

Props luisherranz, gziolo, isabel_brison, costdev, jonsurrell, peterwilsoncc, get_dave, antonvlasenko, desrosj.
See #60315.

git-svn-id: https://develop.svn.wordpress.org/trunk@57377 602fd350-edb4-49c9-b593-d223f7449a82

src/wp-includes/script-loader.php

@@ -1714,7 +1714,7 @@ function wp_default_styles( $styles ) {
 	);
 
 	$package_styles = array(
-		'block-editor'         => array( 'wp-components' ),
+		'block-editor'         => array( 'wp-components', 'wp-preferences' ),
 		'block-library'        => array(),
 		'block-directory'      => array(),
 		'components'           => array(),
@@ -1726,17 +1726,20 @@ function wp_default_styles( $styles ) {
 			'wp-edit-blocks',
 			'wp-block-library',
 			'wp-commands',
+			'wp-preferences',
 		),
 		'editor'               => array(
 			'wp-components',
 			'wp-block-editor',
 			'wp-reusable-blocks',
 			'wp-patterns',
+			'wp-preferences',
 		),
 		'format-library'       => array(),
 		'list-reusable-blocks' => array( 'wp-components' ),
 		'reusable-blocks'      => array( 'wp-components' ),
 		'patterns'             => array( 'wp-components' ),
+		'preferences'          => array( 'wp-components' ),
 		'nux'                  => array( 'wp-components' ),
 		'widgets'              => array(
 			'wp-components',
@@ -1748,6 +1751,7 @@ function wp_default_styles( $styles ) {
 			'wp-block-library',
 			'wp-reusable-blocks',
 			'wp-patterns',
+			'wp-preferences',
 		),
 		'customize-widgets'    => array(
 			'wp-widgets',
@@ -1756,12 +1760,14 @@ function wp_default_styles( $styles ) {
 			'wp-block-library',
 			'wp-reusable-blocks',
 			'wp-patterns',
+			'wp-preferences',
 		),
 		'edit-site'            => array(
 			'wp-components',
 			'wp-block-editor',
 			'wp-edit-blocks',
 			'wp-commands',
+			'wp-preferences',
 		),
 	);