Upgraded Bootstrap 5 to final version. (no more beta)

e107_handlers/library_manager.php

@@ -331,7 +331,7 @@ class core_library
 			),
 			// Override library path to CDN.
 		//https://cdn.jsdelivr.net/npm/bootstrap@5.0.0-beta1/dist/css/bootstrap.min.css
-			'library_path'      => 'https://cdn.jsdelivr.net/npm/bootstrap@5.0.0-beta1',
+			'library_path'      => 'https://cdn.jsdelivr.net/npm/bootstrap@5.0.0',
 			'path'              => '',
 			'version'           => '5.0.0',
 		);