chore: fix section heading in no-duplicate-imports

[electrohyun]

Prerequisites checklist

• I have read the contributing guidelines.

AI acknowledgment

• I did not use AI to generate this PR.
• (If the above is not checked) I have reviewed the AI-generated content before submitting.

What is the purpose of this pull request?

This is a very small cleanup to keep rule section headings consistent.

What changes did you make? (Give an overview)

Renamed Rule to Rule Definition in no-duplicate-imports to match the other rules.

Related Issues

No issue

Is there anything you'd like reviewers to focus on?

No

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Disclosure: I'm a participant of open source contribution program OSSCA

Summary by CodeRabbit

• Documentation
  • Clarified the section comment describing the rule definition.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Team

Run ID: daaada64-c7a2-4f0f-af00-1b6dbb2c04dd

📥 Commits

Reviewing files that changed from the base of the PR and between 33e7314 and 94745f9.

📒 Files selected for processing (1)

• src/rules/no-duplicate-imports.js

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📝 Walkthrough

Walkthrough

The pull request renames a section comment in the duplicate-import rule. No functional behavior changes.

Changes

Rule comment update

Layer / File(s)	Summary
Rename rule section comment src/rules/no-duplicate-imports.js	The comment changes from Rule to Rule Definition.

Estimated code review effort: 1 (Trivial) | ~2 minutes

Merge Risk: ⚪ Minimal · up to 94745

This change updates a rule section heading for consistency and does not alter runtime behavior. It is ready to merge.

Suggested reviewers: tanujkanti4441

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Docstring Coverage	✅ Passed	Docstring coverage is 100.00% which is sufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 1 functions across 1 files.
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.
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly describes the section-heading correction in no-duplicate-imports, which is the main change.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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[Pixel998]

LGTM, thanks!