fix(a11y): label icon-only controls

[viktoravelino]

Summary

• Add accessible names to icon-only controls across header, folder/sidebar actions, node toolbars, playground, file upload, and main page actions.
• Hide decorative SVG/icon content where parent controls already provide the accessible name.
• Keep React Flow/background SVG handling out of scope to avoid DOM patch risk.

Validation

• make test_frontend_a11y_e2e
• cd src/frontend && npm run a11y:report --silent -- --json
• cd src/frontend && npx jest src/components/core/appHeaderComponent/tests/appHeader.a11y.test.tsx src/pages/FlowPage/components/InspectionPanel/tests/InspectionPanelHeader.test.tsx --runInBand

Notes

• This overlaps with PR fix(a11y): add accessible names to icon-only buttons, fix placeholder #13666 in a few call sites. Leaving this draft until fix(a11y): restore focus-visible indicators #13664/fix(a11y): add accessible names to icon-only buttons, fix placeholder #13666 merge so we can rebase and reconcile i18n/test choices.

Refs LE-1516

[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: c47381ff-b7d2-479d-8515-2706ea65dc2e

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 LE-1516

---

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.}

[viktoravelino]

Superseded by #13678 using a meaningful branch name.