Implement Portfolio Export Privacy Warning

[edehvictor]

Summary

Add a privacy warning before exporting portfolio data.

Scope

• Explain that exports may include wallet and balance information.
• Require confirmation before download.
• Remember dismissal only if an existing preference pattern supports it.

Acceptance Criteria

• Users are warned before exporting sensitive portfolio data.
• Export behavior remains unchanged after confirmation.

[ABEEGOLD]

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

I would like to work on this issues because i can do it.

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

[drips-wave]

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

🧑‍💻 @ABEEGOLD: 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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🤠 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.

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