`Leaderboard` profile image fallback

[dDevAhmed]

• 📚 Overview: Refine and implement: Leaderboard profile image fallback
• 🎯 Objectives:
  • Implement Implementation needed
  • Add unit tests
  • Verify with protocol invariants
• 🧠 Problem Context: Issue identified during audit: - Fix: Default avatar.
• 🧩 Technical Scope: Relevant repository module.
• ✅ Acceptance Criteria:
  • Implementation needed is functional
  • Tests passed
  • No regressions
• 🔐 Security / Integrity Considerations: Not specified
• ⏳ Complexity & Effort: Medium
• 🔗 References: Internal Ref #FE-168
• 🏷️ Labels: frontend, stellar-wave, complexity-medium

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[Kenlachy]

@Kenlachy has applied to work on this issue as part of the Stellar Wave Program's 5th wave.

I’d like to work on this because missing profile images break visual consistency in leaderboards and reduce UI polish.

I have experience handling image fallback logic in React, including default avatars, error boundaries for images, and responsive UI states.

I can implement a safe fallback avatar for missing or broken profile images while ensuring the leaderboard layout remains consistent.

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

[godwinishaku506-hub]

@godwinishaku506-hub has applied to work on this issue as part of the Stellar Wave Program's 5th wave.

I would to take care of this problem

ℹ️ Repo Maintainers: To accept this application, review their application or assign @godwinishaku506-hub to this issue.

[ajulaybeeb]

@ajulaybeeb has applied to work on this issue as part of the Stellar Wave Program's 5th wave.

hi maintainer,
i would like to take on this issue

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

[drips-wave]

Congratulations, @godwinishaku506-hub! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on June 2, 2026.

🧑‍💻 @godwinishaku506-hub: 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

When opening a PR, please link it to this issue to ensure it gets tracked accurately. Points are awarded when this issue is marked as completed by the maintainer.

🤠 Repo maintainers: Please keep an eye on the contributor's progress and review their work before the due date. You can manage this issue, including adjusting its complexity and points, here.

🌊 Happy Wave 🌊