fix(AngleDownIcon): Replace AngleDownIcon with RhMicronsCaretDownIcon

[rebeccaalpert]

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

Additional issues:

Summary by CodeRabbit

• Style
  • Updated the next-navigation button icon in the search input component for improved visual refinement (swapping to a different caret-style icon).

[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: fa81b981-b641-46ce-9020-e16f2ddbb840

📥 Commits

Reviewing files that changed from the base of the PR and between 1451561 and dbcaa8d.

⛔ Files ignored due to path filters (1)

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

📒 Files selected for processing (1)

• packages/react-core/src/components/SearchInput/SearchInput.tsx

✅ Files skipped from review due to trivial changes (1)

• packages/react-core/src/components/SearchInput/SearchInput.tsx

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Walkthrough

In SearchInput.tsx, the AngleDownIcon import is replaced with RhMicronsCaretDownIcon, and the next-navigation button's rendered icon is updated to use RhMicronsCaretDownIcon. No component logic, props, or exported API changes.

Changes

SearchInput Icon Swap

Layer / File(s)	Summary
Icon import and render update packages/react-core/src/components/SearchInput/SearchInput.tsx	Removes AngleDownIcon import and updates the next-navigation button to render RhMicronsCaretDownIcon instead.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

Possibly related PRs

• patternfly/patternfly-react#12368: Directly related — also replaces the caret-down icon in SearchInput.tsx to standardize icon usage.
• patternfly/patternfly-react#12453: Related pattern — swaps one icon import for another in a different component, following the same icon replacement approach.

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 title clearly and specifically describes the main change: replacing AngleDownIcon with RhMicronsCaretDownIcon in the SearchInput component.
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-12494.surge.sh

A11y report: https://pf-react-pr-12494-a11y.surge.sh