Permalinks: Use `home_url()` to set the URL base on Permalink Settings screen.

This brings more consistency with how the home URL is retrieved elsewhere in the admin.

Follow-up to [1567], [1664], [2746], [3029], [4144], [53710].

Props sabernhardt.
Fixes #56235.
Built from https://develop.svn.wordpress.org/trunk@53712


git-svn-id: http://core.svn.wordpress.org/trunk@53271 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-admin/options-permalink.php

@@ -246,13 +246,13 @@ $default_structures = array(
 	4 => $index_php_prefix . '/%postname%/',
 );
 
-$url_base = get_option( 'home' ) . $blog_prefix . $index_php_prefix;
+$url_base = home_url( $blog_prefix . $index_php_prefix );
 
 $default_structure_inputs = array(
 	0 => array(
 		'id'      => 'plain',
 		'label'   => __( 'Plain' ),
-		'example' => get_option( 'home' ) . '/?p=123',
+		'example' => home_url( '/?p=123' ),
 		'value'   => $default_structures[0],
 	),
 	1 => array(

wp-includes/version.php

@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '6.1-alpha-53711';
+$wp_version = '6.1-alpha-53712';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.