fix(CheckIcon): Replace CheckIcon with RhMicronsCheckmarkIcon

[rebeccaalpert]

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

Additional issues:

Summary by CodeRabbit

Release Notes

• Style
  • Updated checkmark icons across UI components to use a new, consistent icon variant for improved visual design.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: 5491bb40-926c-43a4-b0a3-037ba0d993de

📥 Commits

Reviewing files that changed from the base of the PR and between a479b4c and 95c0083.

⛔ Files ignored due to path filters (3)

• packages/react-core/src/components/Icon/__tests__/__snapshots__/Icon.test.tsx.snap is excluded by !**/*.snap
• packages/react-core/src/components/Switch/__tests__/__snapshots__/Switch.test.tsx.snap is excluded by !**/*.snap
• packages/react-table/src/deprecated/components/Table/__tests__/__snapshots__/Table.test.tsx.snap is excluded by !**/*.snap

📒 Files selected for processing (13)

• packages/react-core/src/components/ActionList/examples/ActionList.md
• packages/react-core/src/components/ActionList/examples/ActionListVertical.tsx
• packages/react-core/src/components/ActionList/examples/ActionListWithIcons.tsx
• packages/react-core/src/components/HelperText/examples/HelperText.md
• packages/react-core/src/components/HelperText/examples/HelperTextWithCustomIcon.tsx
• packages/react-core/src/components/Icon/__tests__/Icon.test.tsx
• packages/react-core/src/components/Menu/MenuItem.tsx
• packages/react-core/src/components/Switch/Switch.tsx
• packages/react-core/src/demos/HelperText.md
• packages/react-table/src/components/Table/EditColumn.tsx
• packages/react-table/src/components/Table/examples/Table.md
• packages/react-table/src/components/Table/examples/TableEditable.tsx
• packages/react-table/src/demos/Table.md

💤 Files with no reviewable changes (2)

• packages/react-core/src/demos/HelperText.md
• packages/react-table/src/demos/Table.md

---

Walkthrough

All usages of CheckIcon across react-core and react-table packages are replaced with RhMicronsCheckmarkIcon. This affects production components (Switch, MenuItem, EditColumn), unit tests (Icon.test.tsx), component examples (ActionList, ActionListVertical, ActionListWithIcons, HelperTextWithCustomIcon, TableEditable), and documentation/demo Markdown files.

Changes

CheckIcon → RhMicronsCheckmarkIcon Migration

Layer / File(s)	Summary
Production component icon swap packages/react-core/src/components/Switch/Switch.tsx, packages/react-core/src/components/Menu/MenuItem.tsx, packages/react-table/src/components/Table/EditColumn.tsx	Switch replaces CheckIcon with RhMicronsCheckmarkIcon in both label and no-label render paths. MenuItem updates the selected-state icon. EditColumn updates the save button icon.
Icon component test updates packages/react-core/src/components/Icon/__tests__/Icon.test.tsx	All test cases (render, class/size modifiers, status, inline, in-progress, and progress icon snapshot) swap CheckIcon for RhMicronsCheckmarkIcon as the child icon.
Examples and documentation packages/react-core/src/components/ActionList/examples/ActionList.md, packages/react-core/src/components/ActionList/examples/ActionListVertical.tsx, packages/react-core/src/components/ActionList/examples/ActionListWithIcons.tsx, packages/react-core/src/components/HelperText/examples/HelperText.md, packages/react-core/src/components/HelperText/examples/HelperTextWithCustomIcon.tsx, packages/react-core/src/demos/HelperText.md, packages/react-table/src/components/Table/examples/Table.md, packages/react-table/src/components/Table/examples/TableEditable.tsx, packages/react-table/src/demos/Table.md	All example .tsx files replace CheckIcon imports and JSX usages with RhMicronsCheckmarkIcon. Markdown doc files update their embedded import snippets or remove the now-unused CheckIcon import.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~5 minutes

Suggested reviewers

• thatblindgeye
• nicolethoen
• kmcfaul

🚥 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 title accurately summarizes the main objective of the changeset: replacing CheckIcon with RhMicronsCheckmarkIcon across multiple files and components.
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.

_{✏️ Tip: You can configure your own custom pre-merge checks in the settings.}

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

---

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.}

[patternfly-build]

Preview: https://pf-react-pr-12518.surge.sh

A11y report: https://pf-react-pr-12518-a11y.surge.sh