fix(types): resolve isArrayOfArray type return

[sandros94]

Discussed privately, minor type issue that is not picked up by vue-tsc.

[coderabbitai]

📝 Walkthrough

Walkthrough

This PR refactors type annotations in two files. EditorToolbar.vue removes an explicit type annotation on the groups computed property, allowing type inference instead, and adjusts a type cast. In index.ts, the isArrayOfArray function's type signature is refactored from a simple generic accepting A[] | A[][] to a more sophisticated version using nested conditional types. Both changes affect compile-time type behavior without altering runtime logic.

Estimated code review effort

🎯 3 (Moderate) | ⏱️ ~25 minutes

🚥 Pre-merge checks | ✅ 2 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (2 passed)

Check name	Status	Explanation
Description check	✅ Passed	The description relates to the changeset by acknowledging it addresses a minor TypeScript typing issue, though it lacks specific details about what was fixed.
Title check	✅ Passed	The title directly addresses the main change—improving the type return of the isArrayOfArray function, which is the primary focus of the pull request.

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✨ Finishing Touches

• 📝 Generate docstrings (stacked PR)
• 📝 Generate docstrings (commit on current branch)

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch type/fix-array-check

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[pkg-pr-new]

npm i https://pkg.pr.new/@nuxt/ui@6097

commit: cf02659