Accessibility Checkbox: Screen reader doesn't announce list checkboxes as `group`.

[olehnoskov-cengage]

Screen reader doesn't announce list checkboxes as group, each checkbox individually when the user navigates through the checkboxes.

Current implementation is that the group label is announced when initially entering the group, but not for every checkbox.

The goal is to reproduce such behavior, which is described here : ARIA-Checkbox

Original request: Link to Slack