Prepare for release 6.0.0

Finalizes the 6.0.0 stable release (Bootstrap 5.3.8):

- extension.json: version 6.0.0-beta -> 6.0.0
- docs/release-notes.md: 6.0.0 entry finalized with release date
- src/Hooks/SetupAfterCache.php: phpcs nit (missing space in array key)

No functional or library changes; release prep only.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: malberts

docs/release-notes.md

@@ -2,7 +2,7 @@
 
 ### MediaWiki Bootstrap 6.0.0
 
-Under development.
+Released on May 19, 2026.
 
 * Upgraded Bootstrap from 4.6.2 to 5.3.8 (thanks @malberts)
 * Raised minimum MediaWiki version from 1.39 to 1.43

extension.json

@@ -6,7 +6,7 @@
 		"[https://professional.wiki/ Professional Wiki]",
 		"James Hong Kong"
 	],
-	"version": "6.0.0-beta",
+	"version": "6.0.0",
 	"url": "https://www.mediawiki.org/wiki/Extension:Bootstrap",
 	"descriptionmsg": "bootstrap-desc",
 	"license-name": "GPL-3.0-or-later",

src/Hooks/SetupAfterCache.php

@@ -109,7 +109,7 @@ protected function registerResourceLoaderModules( $localBasePath, $remoteBasePat
 				'localBasePath'  => $localBasePath . '/js',
 				'remoteBasePath' => $remoteBasePath . '/js',
 				'es6' => true,
-				'scripts'=> [],
+				'scripts' => [],
 			],
 			array_key_exists( 'ext.bootstrap.scripts', $GLOBALS[ 'wgResourceModules' ] ) ?
 				$GLOBALS[ 'wgResourceModules' ][ 'ext.bootstrap.scripts' ] : []