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

functions.php

@@ -140,6 +140,9 @@ if (get_option('aksrt_flushed_version') !== AKSRT_VERSION) {
 if (class_exists('\AKSRT\Admin\NavMenuOptions')) {
     \AKSRT\Admin\NavMenuOptions::init();
 }
+if (class_exists('\AKSRT\Admin\PageConfigMetaBox')) {
+    \AKSRT\Admin\PageConfigMetaBox::init();
+}
 \AKSRT\Auth\OAuth::get_instance()->init();
 if (class_exists('\AKSRT\Auth\WeixinGzh')) {
     \AKSRT\Auth\WeixinGzh::get_instance()->init();