Add a top investors leaderboard section to the home page showing the five wallets with the highest total committed XLM

[Chucks1093]

Summary

The home page has no recognition of active investors. A top investors section showing the five wallets with the highest total committed XLM — with truncated address, total committed, and number of invoices invested in — would add social proof and encourage participation.

Scope

• Fetch the top 5 investors from the leaderboard endpoint on home page mount
• Display each as a row: rank, truncated wallet, total committed XLM, and invoice count
• Show skeleton rows during loading
• Refresh every 5 minutes using refetchInterval
• Section hidden if the endpoint returns fewer than one investor

Acceptance Criteria

• Top 5 investors displayed in descending committed XLM order
• Each row shows rank, truncated wallet, total committed, and invoice count
• Skeleton rows shown during loading
• Refreshes every 5 minutes
• Section hidden when no investors returned

ETA: 12 hours

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Coordinate on Telegram