fix(tree-view): remove duplicate aria roll from treenode

[mathisscott]

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?

• [x] Bugfix
• [ ] 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?

Issue Number: ..from a11y list

What is the new behavior?

The aria role now only exists on the tree-node's focusable content container. Previously, both the content container of the tree item and its parent angular component had the same role. This was a problem for the a11y team's automated tests.

Does this PR introduce a breaking change?

• [ ] Yes
• [x] No

Other information

[mathisscott]

This is a fix that can be backported.