fix: MintSongButton.tsx multiple any types

[Akatenvictor]

Lines 78, 88, 103 all use any for error and result types.

Acceptance Criteria: Replace all any with proper types

[Sammydz456]

@Sammydz456 has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

hello maintainer can i work on this issue

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[Queenode]

@Queenode has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

I would like to work on this issue . I understand the assignment and the requirements, and I’m confident in the approach needed to deliver the best solution. Kindly assign this task to me.

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

[drips-wave]

Congratulations, @Queenode! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on August 31, 2026.

🧑‍💻 @Queenode: 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 @Queenode as part of the Stellar Wave Program's 8th Wave 🥳

😎 @Queenode: 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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