feat(navigation): hard-switch to Zibll navigation and Font Awesome 5

templates/parts/content-empty.php

@@ -7,7 +7,7 @@
  * @package AKSRT
  * @since 5.0.0
  *
- * @var string $icon      FA icon class (default: far fa-inbox)
+ * @var string $icon      FA icon class (default: fa fas fa-inbox)
  * @var string $title     主标题
  * @var string $desc      描述文字
  * @var string $action_url   操作按钮链接
@@ -17,7 +17,7 @@
 
 defined('ABSPATH') || exit;
 
-$icon       = $args['icon'] ?? 'far fa-inbox';
+$icon       = $args['icon'] ?? 'fa fas fa-inbox';
 $title      = $args['title'] ?? __('暂无内容', 'aksrt');
 $desc       = $args['desc'] ?? '';
 $action_url = $args['action_url'] ?? '';