It seems the new Plugin System - Additional Accessibility Features is not correctly detected in the page landmarks by the "Skip to" plugin

Steps to reproduce the issue

1. Go to plugin manager and enable Skip To plugin for frontend
2. Enable plugin System - Additional Accessibility Features for Frontend
3. Go to the frontend of your page
4. Use your keyboard (press Tab Key) to reach the Keyboard navigation menu
5. Open it clicking Enter

Expected result

In the page outline feature we should see a "Toggle" accessibility options and after choosing it, the focus will be on the Accessibility Options Button.

Actual result

In the page outline we see an entry called "Close Accesibility Options..." and when reaching it with your keyboard it does not go to the accessibility icon.

System information (as much as possible)

• Latest Joomla from GH after npm ci and php composer update

@joomla/joomla-accessibility-team-jat