fix(wizard): improve wizard aria-labelledby

[mathisscott]

• addresses vpat-762 • also issue #4683 • added unit tests

Signed-off-by: Scott Mathis smathis@vmware.com

PR Checklist

Please check if your PR fulfills the following requirements:

• [x] Tests for the changes have been added (for bug fixes / features)
• [ ] Docs have been added / updated (for bug fixes / features)
• [ ] If applicable, have a visual design approval

PR Type

What kind of change does this PR introduce?

• [ ] Bugfix
• [x] Feature
• [ ] Code style update (formatting, local variables)
• [ ] Refactoring (no functional changes, no api changes)
• [ ] Build related changes
• [ ] CI related changes
• [ ] Documentation content changes
• [ ] clarity.design website / infrastructure changes
• [ ] Other... Please describe:

What is the current behavior?

aria-labelled on the modal-dialog by points to the modal-title (which is the step/current-page title) in the wizard.

Issue Number: #4683

What is the new behavior?

we've added a labelledBy property/input that can be used to change the target id of the aria-labelledby attr on .modal-dialog.

all of this is internal. the new prop/input is only public because the wizard needs to use it in its template where it builds out the modal. both ids (modalId and wizardId) are auto-generated.

because this is all internal it is a good candidate for backporting.

Does this PR introduce a breaking change?

• [ ] Yes
• [x] No

Other information