🎨 Palette: Improve accessibility of dynamic output containers

[EffortlessSteven]

💡 What: Replaced invalid <label> tags on non-interactive output containers with styled divs and aria-labelledby. Added role="region", tabindex="0", and aria-live="polite" to all dynamic output displays.

🎯 Why: To fix invalid HTML validation (labels are only for form inputs), improve keyboard accessibility (allowing scrollable regions to receive focus), and ensure screen readers properly announce asynchronous output updates from inference and workers.

📸 Before/After: Visually identical, but structurally accessible.

♿ Accessibility: Added proper screen reader announcements for asynchronous updates via aria-live="polite". Enabled keyboard navigation for scrollable output content via tabindex="0" and role="region". Fixed invalid element labelling.

---

PR created automatically by Jules for task 10485283321726407243 started by @EffortlessSteven

[google-labs-jules]

👋 Jules, reporting for duty! I'm here to lend a hand with this pull request.

When you start a review, I'll add a 👀 emoji to each comment to let you know I've read it. I'll focus on feedback directed at me and will do my best to stay out of conversations between you and other bots or reviewers to keep the noise down.

I'll push a commit with your requested changes shortly after. Please note there might be a delay between these steps, but rest assured I'm on the job!

For more direct control, you can switch me to Reactive Mode. When this mode is on, I will only act on comments where you specifically mention me with @jules. You can find this option in the Pull Request section of your global Jules UI settings. You can always switch back!

New to Jules? Learn more at jules.google/docs.

---

For security, I will only act on instructions from the user who triggered this task.

[gemini-code-assist]

Warning

You have reached your daily quota limit. Please wait up to 24 hours and I will start processing your requests again!

[coderabbitai]

Important

Review skipped

Draft detected.

Please check the settings in the CodeRabbit UI or the .coderabbit.yaml file in this repository. To trigger a single review, invoke the @coderabbitai review command.

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Pro

Run ID: 0e337f08-ed53-46bd-b08b-3ac6a934ddf1

You can disable this status message by setting the reviews.review_status to false in the CodeRabbit configuration file.

Use the checkbox below for a quick retry:

• 🔍 Trigger review

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch palette-a11y-output-containers-10485283321726407243

---

Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out.

❤️ Share

• X
• Mastodon
• Reddit
• LinkedIn

_{Comment @coderabbitai help to get the list of available commands and usage tips.}