Issue Summary

The custom checkbox element is missing a role and/or checked state. role checkbox is not provided to appropriate element also checked state is also not announced for screen reader user.

Steps to Reproduce

1. Open URL
2. Navigate to issues dropdown and select "Search for issues"
3. Navigate to "Project" and expand now bring focus and observe whether items are announced as checkboxes also, when checkbox is in checked state is it announced as checked.

Actual Results

When user navigates to checkboxes available when user activates  "Project", "Type", "Status", "Assignee" and "more" available after "Save as" screenreader does not announces it as a "Checkbox". Additionally, when user moves focus on checkbox that is in checked state it does not announces checked state.

Expected Results

When user navigates to checkboxes screen readers should announce it as checkboxes, also when focus is moved on to checkbox which is in checked state it should announce it as checked. Use role="checkbox" and provide aria-checked="true" for checked checkboxes on appropriate elements.

Screenshot

Bug Ref: 723898