Page tree : Incorrect aria-label provided to the expand/collapse page tree buttons.

Issue Summary

In Confluence sidebar, the expand/collapse elements present under page tree section have incorrect aria-label. 

Steps to Reproduce

1. Navigate to Confluence homepage.
2. Navigate to "Spaces" menu in header section.
3. Activate any space link from the menu.
4. Navigate to the Page tree section in left sidebar.
5. Navigate to expand/collapse elements.

Expected Results

While navigating with screen reader, when user navigate to the expand/collapse elements inside page tree section, the screen reader announces the label as "Expand item <page name>".

For Example : Expanded, link, Expand item page 1

The word "expand" is not required in the aria-label since the state of the button is announced through aria-expanded attribute.

This makes screen reader user difficult to understand the purpose of the  button effectively.

Actual Results

Remove the the word "Expand" from the aria-label attribute of the links in the source code. The screen reader should announce the descriptive & clear label.

For Example : "Expanded, Item page 1"

Screenshot

Workaround

Currently there is no known workaround for this behavior. A workaround will be added here when available