The previous and next buttons for hidden content have a problem with looping.

[ollie-iterators]

Brief Description
The previous and next buttons for hidden content do not allow the user to loop through the elements and always stops going forward or backwards when you have reached the last element revealed going forwards or the first element that is revealed going backwards.

Screengrab/videos (insert file names here)
https://user-images.githubusercontent.com/46904826/200187576-b1ef5747-48e1-4fd5-aaae-8516a09b4882.mp4

Link
https://www.boston.gov/

Environment (Device > OS > Browser):
Macbook Air > MacOS 13.0 > Chrome 107

Type of Bug: Functional, Accessibility or Content
Functional

Steps to reproduce

1. 00:00: Load the URL
2. 00:02, Click ANDI. Hover over the module selection area
3. 00:04, Click "hidden content"
4. 00:06, Click "css hiding techniques"
5. 00:07, Click "7 display:none"
6. 00:09, Click on the previous element button until you stop going to a different element
   a. BUG: 00:12, You can not go to a different element by clicking on the previous button because you are now at the first element that has been revealed
7. 00:18, Click on the next element button until you stop going to a different element
   a. BUG: 00:21, You can not go to a different element by clicking on the next button because you are now at the last element that has been revealed

Desired Result

• You can loop back to the last element that was revealed by clicking the previous element repeatedly when on the hidden content module and you can loop back to the first element that was revealed by clicking on the next button repeatedly when on the hidden content module.

Actual Result

• When you get to the first element that was revealed while clicking the previous element button, you stop going to a different element, and when you get to the last element that was revealed while clicking on the next element button, you stop going to a different element.