Text Changes: Replace "Full site editing" with "Site Editor".

This changeset replaces the various occurrences of "Full site editing" with "Site Editor" as it is the new official name of the feature.

For more background about this change, see https://make.wordpress.org/updates/2022/11/04/site-editor-a-more-user-friendly-name/.

Props audrasjb, peterwilsoncc, poena.
Fixes #57026.

Built from https://develop.svn.wordpress.org/trunk@54786


git-svn-id: http://core.svn.wordpress.org/trunk@54338 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/script-loader.php

@@ -1287,7 +1287,7 @@ function wp_default_scripts( $scripts ) {
 			'invalidValue'            => __( 'Invalid value.' ),
 			'blockThemeNotification'  => sprintf(
 				/* translators: 1: Link to Site Editor documentation on HelpHub, 2: HTML button. */
-				__( 'Hurray! Your theme supports Full Site Editing with blocks. <a href="%1$s">Tell me more</a>. %2$s' ),
+				__( 'Hurray! Your theme supports Site Editing with blocks. <a href="%1$s">Tell me more</a>. %2$s' ),
 				__( 'https://wordpress.org/support/article/site-editor/' ),
 				sprintf(
 					'<button type="button" data-action="%1$s" class="button switch-to-editor">%2$s</button>',