Fix send box should narrate aria-label

[compulim]

Changelog Entry

Fixed

• Fixed send box should narrate aria-label prop, by @compulim, in PR #5805

Description

This is fixing aria-label that was passed but never render into HTML element.

Specific Changes

• Updated both <input> and <textarea> to forward the aria-label prop

• I have added tests and executed them locally
• I have updated CHANGELOG.md
• I have updated documentation

Review Checklist

This section is for contributors to review your work.

• Accessibility reviewed (tab order, content readability, alt text, color contrast)
• Browser and platform compatibilities reviewed
• CSS styles reviewed (minimal rules, no z-index)
• Documents reviewed (docs, samples, live demo)
• Internationalization reviewed (strings, unit formatting)
• package.json and package-lock.json reviewed
• Security reviewed (no data URIs, check for nonce leak)
• Tests reviewed (coverage, legitimacy)

[Copilot]

Pull request overview

Note

Copilot was unable to run its full agentic suite in this review.

Fixes an accessibility gap where the send box’s aria-label could be provided but not rendered onto the underlying <input> / <textarea> element.

Changes:

• Forward aria-label to the underlying <input> (AccessibleInputText) and <textarea> (TextArea).
• Add runtime prop validation schemas (valibot) for AccessibleInputText and TextArea.
• Add HTML-based accessibility tests covering aria-label for single-line, multi-line, and Fluent scenarios.

Reviewed changes

Copilot reviewed 6 out of 6 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
packages/component/src/Utils/AccessibleInputText.tsx	Adds aria-label forwarding and introduces runtime prop validation via valibot schema.
packages/component/src/TextArea/TextArea.tsx	Adds aria-label forwarding and introduces runtime prop validation via valibot schema.
tests/html2/accessibility/sendBox/ariaLabel.html	New test verifying aria-label is applied for single-line send box (INPUT).
tests/html2/accessibility/sendBox/ariaLabel.multilineTextBox.html	New test verifying aria-label is applied for multiline send box (TEXTAREA).
tests/html2/accessibility/sendBox/ariaLabel.fluent.html	New test verifying aria-label is applied in Fluent setup.
CHANGELOG.md	Adds changelog entry for the aria-label fix.

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