fix: improve promotion tabs and referral layout

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

@@ -13,8 +13,6 @@ $level_url = isset($dashboard_tabs['level'])
 $auth_url = isset($dashboard_tabs['auth']) ? aksrt_get_user_center_tab_url('auth') : '';
 $orders_available = isset($dashboard_tabs['orders']);
 $orders_url = $orders_available ? (string) ($orders_url ?? '') : '';
-$revenue_available = isset($dashboard_tabs['revenue']);
-$revenue_url = $revenue_available ? aksrt_get_user_center_tab_url('revenue') : '';
 
 $services = array_values(array_filter([
 	[
@@ -38,13 +36,6 @@ $services = array_values(array_filter([
 		'url'   => $orders_url,
 		'tab'   => 'orders',
 	],
-	[
-		'label' => __('推广收益', 'aksrt'),
-		'icon'  => 'chart-line',
-		'tone'  => 'revenue',
-		'url'   => $revenue_url,
-		'tab'   => 'revenue',
-	],
 ], static fn(array $item): bool => (string) $item['url'] !== ''));
 
 $settings = array_values(array_filter([