进行了一些小优化

inc/helpers/user-center-renderers/sidebar-nav.php

@@ -43,8 +43,8 @@ $settings = array_values(array_filter([
 		'label' => __('消息通知', 'aksrt'),
 		'icon'  => 'bell',
 		'tone'  => 'notice',
-		'url'   => (string) ($messages_url ?? ''),
-		'count' => (int) ($notification_unread_count ?? 0),
+		'url'   => isset($dashboard_tabs['msg']) ? aksrt_get_user_center_tab_url('msg') : '',
+		'tab'   => 'msg',
 	],
 	[
 		'label' => __('个人资料', 'aksrt'),