fix(WarningTriangleIcon): Replace WarningTriangleIcon with RhUiWarningIcon

[rebeccaalpert]

What:
Part of #12402. Breaking into separate PRs so it is easier to review.

Additional issues:

Summary by CodeRabbit

• Style
  • Updated warning icon styling across Modal components and documentation for improved visual consistency.

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ℹ️ Review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: 6d9ef597-a600-46aa-bedd-683534e90363

📥 Commits

Reviewing files that changed from the base of the PR and between 4191abf and f892ec3.

📒 Files selected for processing (6)

• packages/react-core/src/components/Modal/examples/Modal.md
• packages/react-core/src/components/Modal/examples/ModalCustomHeader.tsx
• packages/react-core/src/deprecated/components/Modal/examples/Modal.md
• packages/react-core/src/deprecated/components/Modal/examples/ModalCustomHeaderFooter.tsx
• packages/react-integration/demo-app-ts/src/components/demos/ModalDemo/ModalDemo.tsx
• packages/react-integration/demo-app-ts/src/components/demos/ModalDeprecatedDemo/ModalDeprecatedDemo.tsx

Walkthrough

All Modal example and demo files replace the WarningTriangleIcon import and render call with RhUiWarningIcon. The change affects two .md documentation files and four .tsx component files across both the current and deprecated Modal examples, as well as the integration demo app.

Changes

Modal Warning Icon Replacement

Layer / File(s)

Summary

Icon swap across all Modal examples and demos packages/react-core/src/components/Modal/examples/Modal.md, packages/react-core/src/components/Modal/examples/ModalCustomHeader.tsx, packages/react-core/src/deprecated/components/Modal/examples/Modal.md, packages/react-core/src/deprecated/components/Modal/examples/ModalCustomHeaderFooter.tsx, packages/react-integration/demo-app-ts/src/components/demos/ModalDemo/ModalDemo.tsx, packages/react-integration/demo-app-ts/src/components/demos/ModalDeprecatedDemo/ModalDeprecatedDemo.tsx

Replaces WarningTriangleIcon import and render usage with RhUiWarningIcon in all Modal example docs, example components, and integration demo components for both current and deprecated Modal variants.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

Suggested reviewers

• nicolethoen
• thatblindgeye

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The pull request title clearly and concisely describes the main change: replacing WarningTriangleIcon with RhUiWarningIcon across multiple files.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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[patternfly-build]

Preview: https://pf-react-pr-12508.surge.sh

A11y report: https://pf-react-pr-12508-a11y.surge.sh