Add scrollbar-width and scrollbar-color to property order list

[RobinMalfait]

This PR adds the scrollbar-width and scrollbar-color properties to the property order list such that we have a stable sort order for these properties.

I put scrollbar-width before scrollbar-color, which is the same order as the border-width and border-color properties.

Test plan

1. Had to update a test because of the swapped order
2. All other tests pass

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Repository UI

Review profile: CHILL

Plan: Pro

Run ID: a531a21e-f7c5-4ef9-8850-b2efd3963722

📥 Commits

Reviewing files that changed from the base of the PR and between 12eb5ae and b1a2848.

📒 Files selected for processing (4)

• CHANGELOG.md
• packages/tailwindcss/src/compat/config.test.ts
• packages/tailwindcss/src/compat/plugin-api.test.ts
• packages/tailwindcss/src/property-order.ts

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Walkthrough

This PR updates the CSS property ordering to include scrollbar-width and scrollbar-color properties after existing scroll-padding properties. The property ordering contract in property-order.ts is updated to reflect this new position. Correspondingly, test snapshots in config.test.ts and plugin-api.test.ts are revised to verify that generated CSS rules now follow this updated property order, with scrollbar-related rules appearing in their new positions. The changelog is updated to explicitly document the scrollbar utility categories affected by this property ordering change.

🚥 Pre-merge checks | ✅ 4

✅ Passed checks (4 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly and specifically describes the main change: adding scrollbar-width and scrollbar-color properties to the property order list, which aligns with the actual modifications in property-order.ts and related test updates.
Description check	✅ Passed	The description is directly related to the changeset, explaining the purpose of adding the two properties to the property order list, the ordering rationale, and providing a test plan that matches the changes made.
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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[greptile-apps]

Confidence Score: 5/5

Safe to merge — the change is a minimal list insertion with no logic changes.

The only code change is inserting two string entries into a static property-order array, and the test snapshots have been updated to match the resulting sort output. The placement is internally consistent with the existing pattern of grouping related properties and ordering width before color.

No files require special attention.

_{Reviews (2): Last reviewed commit: "Merge branch 'feat/add-scrollbar-gutter'..." | Re-trigger Greptile}