Build ImageGallery component for collection artwork grid

[Akatenvictor]

What

Create a responsive image gallery component for displaying collection artwork in a 2x2 grid with overflow indicator for collections with 5+ tracks.

Why

Collection cards need a consistent way to preview artwork from multiple tracks. A 2x2 grid with overflow count is a common pattern that efficiently communicates collection contents.

Scope

In: 2x2 grid layout, overflow count badge, lazy loading, aspect ratio enforcement, click handler
Out: Full-screen gallery view, drag-and-drop reordering

Acceptance Criteria

• Shows up to 4 artwork thumbnails in 2x2 grid
• 5th+ items shown as "+N" badge on the 4th cell
• Images lazy loaded with IntersectionObserver
• Consistent 1:1 aspect ratio per cell
• Click navigates to collection detail
• Graceful fallback if artwork URL is missing (placeholder gradient)

Technical Context

• New components/ui/ImageGallery.tsx
• Uses next/image with fill mode
• Grid via CSS Grid with aspect-ratio: 1

[tecmalik]

@tecmalik has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

please assign me to this issue i would love to work on it

ℹ️ Repo Maintainers: To accept this application, review their application or assign @tecmalik to this issue.

[kris-nana]

@kris-nana has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

Hi Maintainer, I'd like to work on this issue. Please assign this to me

ℹ️ Repo Maintainers: To accept this application, review their application or assign @kris-nana to this issue.

[Buchi-Einstein]

@Buchi-Einstein has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

can i work on this

ℹ️ Repo Maintainers: To accept this application, review their application or assign @Buchi-Einstein to this issue.

[drips-wave]

Congratulations, @Buchi-Einstein! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on July 30, 2026.

🧑‍💻 @Buchi-Einstein: Please resolve the issue such that the repo's maintainers have enough time to review your contribution before the due date. You'll earn Points for completing the issue on-time, which will make you eligible for a share of the Stellar Wave Program's reward pool.

Warning

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🌊 Happy Wave 🌊

[drips-wave]

This issue has been marked as completed by a Drips Wave moderator for @Buchi-Einstein as part of the Stellar Wave Program's 7th Wave 🥳

Moderator's reason: [Auto-assessed] The contributor implemented all acceptance criteria, including the 2x2 grid layout, the overflow count badge for 5+ items, and lazy loading using IntersectionObserver. The PR has no maintainer response across any of the four channels and addresses the issue requirements accurately.

😎 @Buchi-Einstein: You earned 200 Points for completing this issue! After the current Wave ends, you'll be eligible for a percentage of the Wave's reward pool based on the percentage of total points you've earned. Learn more here.

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ℹ️ Note: This issue was marked complete via moderation. Points were issued even though the GitHub issue remains open.