fix(MinusIcon): Replace MinusIcon with RhUiMinusIcon

[rebeccaalpert]

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

Additional issues:

Summary by CodeRabbit

• Refactor
  • Updated icon implementations across multiple components and examples for consistency.

[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: e3d3a010-1c0f-49b3-b36f-43155ad946ca

📥 Commits

Reviewing files that changed from the base of the PR and between a479b4c and 1bedb7f.

⛔ Files ignored due to path filters (1)

• packages/react-core/src/components/NumberInput/__tests__/__snapshots__/NumberInput.test.tsx.snap is excluded by !**/*.snap

📒 Files selected for processing (5)

• packages/react-core/src/components/HelperText/HelperTextItem.tsx
• packages/react-core/src/components/NumberInput/NumberInput.tsx
• packages/react-core/src/components/Slider/examples/Slider.md
• packages/react-core/src/components/Slider/examples/SliderActions.tsx
• packages/react-core/src/demos/HelperText.md

💤 Files with no reviewable changes (1)

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

---

Walkthrough

MinusIcon is replaced with RhUiMinusIcon in HelperTextItem, NumberInput, SliderActions, and the Slider and HelperText demo/example files. The HelperText.md demo additionally drops the now-unused MinusIcon import and adds useEffect/useState imports.

Changes

MinusIcon → RhUiMinusIcon Icon Replacement

Layer / File(s)	Summary
Icon swap in components and examples packages/react-core/src/components/HelperText/HelperTextItem.tsx, packages/react-core/src/components/NumberInput/NumberInput.tsx, packages/react-core/src/components/Slider/examples/SliderActions.tsx, packages/react-core/src/components/Slider/examples/Slider.md, packages/react-core/src/demos/HelperText.md	Replaces MinusIcon import and JSX usage with RhUiMinusIcon in HelperTextItem (defaultVariantIcons.indeterminate), NumberInput (minus button icon), and SliderActions (startActions minus button). Slider.md updates the shared import. HelperText.md removes the now-unused MinusIcon import.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

Suggested reviewers

• thatblindgeye
• nicolethoen

🚥 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 describes the main change: replacing MinusIcon with RhUiMinusIcon across multiple components and 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.

_{✏️ 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-12522.surge.sh

A11y report: https://pf-react-pr-12522-a11y.surge.sh