Help/About: Use the new /documentation/ URLs for HelpHub links in WordPress Admin.

As `https://wordpress.org/support/` was redirected to `https://wordpress.org/documentation/`, this changeset replaces various `/support/article/*` links with `/documentation/article/*` to avoid an extra redirect.

This also updates links to Support Forums by replacing `https://wordpress.org/support/` URLs with `https://wordpress.org/support/forums/`.

Props SergeyBiryukov, audrasjb, dhrupo, hasanmisbah, sakibmd, sabernhardt.
See #57726.


git-svn-id: https://develop.svn.wordpress.org/trunk@55412 602fd350-edb4-49c9-b593-d223f7449a82

wp-config-sample.php

@@ -13,7 +13,7 @@
  * * Database table prefix
  * * ABSPATH
  *
- * @link https://wordpress.org/support/article/editing-wp-config-php/
+ * @link https://wordpress.org/documentation/article/editing-wp-config-php/
  *
  * @package WordPress
  */
@@ -77,7 +77,7 @@ $table_prefix = 'wp_';
  * For information on other constants that can be used for debugging,
  * visit the documentation.
  *
- * @link https://wordpress.org/support/article/debugging-in-wordpress/
+ * @link https://wordpress.org/documentation/article/debugging-in-wordpress/
  */
 define( 'WP_DEBUG', false );