fix: add Luau icons

[OverHash]

Luau icons are missing from the source file viewer.

This is commonly a problem for orgs like @rbxts, which has hundreds of packages with luau source files.

This PR adds the luau icon, using the vscode-icons pack.

Before	After

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Project	Deployment	Actions	Updated (UTC)
npmx.dev	Ready	Preview, Comment	Feb 14, 2026 1:00am

2 Skipped Deployments

Project	Deployment	Actions	Updated (UTC)
docs.npmx.dev	Ignored	Preview	Feb 14, 2026 1:00am
npmx-lunaria	Ignored		Feb 14, 2026 1:00am

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ All tests successful. No failed tests found.

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[coderabbitai]

📝 Walkthrough

Walkthrough

This pull request adds a single file extension mapping to the EXTENSION_ICONS constant in app/utils/file-icons.ts. The change introduces support for the 'luau' file extension by mapping it to the 'vscode-icons-file-type-luau' icon. No modifications to logic, error handling, or existing mappings are made.

Possibly related PRs

• feat: generate sprite for file view #1347: Modifies the same EXTENSION_ICONS mapping in app/utils/file-icons.ts, restructuring and exporting icon-related mappings alongside this extension addition.

Suggested reviewers

• danielroe

🚥 Pre-merge checks | ✅ 1 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Merge Conflict Detection	⚠️ Warning	❌ Merge conflicts detected (3 files): ⚔️ app/utils/file-icons.ts (content) ⚔️ i18n/locales/pl-PL.json (content) ⚔️ lunaria/files/pl-PL.json (content) These conflicts must be resolved before merging into main.	Resolve conflicts locally and push changes to this branch.

✅ Passed checks (1 passed)

Check name	Status	Explanation
Description check	✅ Passed	The pull request description clearly relates to the changeset, explaining the problem (missing Luau icons), the solution (adding icon mapping), and providing before/after visual evidence.

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✨ Finishing touches

• 📝 Generate docstrings

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment

⚔️ Resolve merge conflicts (beta)

• Auto-commit resolved conflicts to branch feat/luau-icons
• Post resolved changes as copyable diffs in a comment

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[github-actions]

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