Add compact empty wallet state for buy screen

[Chucks1093]

Summary

Add a compact empty-wallet state for buy screens when the user has no visible balance yet.

Scope

• create a small empty-wallet state component
• include short explanatory copy
• keep the pattern reusable in buy-related surfaces

Acceptance Criteria

• user sees a clear empty-wallet state
• copy explains the missing balance context
• UI fits the rest of the flow styling

Contributor note: comment on the issue first and reach out in Telegram for updates or coordination: https://t.me/accesslayerorg

[determined-001]

@determined-001 has applied to work on this issue as part of the Stellar Wave Program's 3rd wave.

Hi, I'd love to work on this issure - adding the compact empty wallet state for the buy screen. I have experience building reusable UI components with clear empty/zero-state patterns that match existing design systems and keep copy concise and contextual. My plan is to create a small, self-contained component that displays an explanatory message when no balance is detected, styled to fit seamlessly within the buy flow. I'll make sure the component is generic enough to be dropped into other buy-related surfaces without modification. I'll reach out on Telegram for any design or coordination details before opening a PR. Please assign me if this is still available!

ℹ️ Repo Maintainers: To accept this application, review their application or assign @determined-001 to this issue.

[floxxih]

@floxxih has applied to work on this issue as part of the Stellar Wave Program's 3rd wave.

Hi, I’d like to work on this issue. I have experience building full-stack applications with Soroban, handling both smart contract logic and frontend integration, and I’m comfortable debugging and delivering clean, maintainable solutions. I focus on clear communication and incremental updates to ensure smooth collaboration. I can complete this task within 24–48 hours while maintaining code quality and proper testing. Looking forward to contributing!

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

[drips-wave]

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

🧑‍💻 @floxxih: 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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[drips-wave]

This issue has been completed by @floxxih as part of the Stellar Wave Program's 3rd Wave 🥳

😎 @floxxih: 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. You can also Leave a review to share your experience working on this issue.

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