Implement virtual scrolling for the marketplace invoice list

[king-aj-the-first]

Background: With 50+ invoices, the marketplace DOM becomes heavy. Virtual scrolling renders only visible cards.

What "done" looks like:

• Install and use @tanstack/react-virtual (already likely compatible with TanStack Query in the project)
• Marketplace list renders a virtual window — only ~10 cards in the DOM at a time
• Smooth scroll behaviour, correct item heights, no layout shift

Key files: app/marketplace/page.tsx, components/invoice/InvoiceCard.tsx

Constraints:

• Must not break the comparison checkbox feature (Issue Implement Navbar with Responsive Mobile Menu #26)
• Item height must be measured dynamically (cards vary by content)
• Pinned version of @tanstack/react-virtual

PR must include: Virtual scroller + dynamic height measurement + performance comparison (DOM node count before vs after) in PR description.

[ojuotimi932]

@ojuotimi932 has applied to work on this issue as part of the Stellar Wave Program's 6th wave.

Hi Maintainer Can I resolve this kindly assign

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[EDOHWARES]

@EDOHWARES has applied to work on this issue as part of the Stellar Wave Program's 6th wave.

GM GM Maintainer, pls can I work on this issue ? ETA - 24hrs

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

[drips-wave]

Congratulations, @EDOHWARES! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on June 30, 2026.

🧑‍💻 @EDOHWARES: 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.

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