ToastContainer: Add configurable position prop (top/bottom, left/right)

[Kingsman-99]

Description

ToastContainer always renders toasts in the top-right corner. Contributors should add a position prop that accepts "top-right", "top-left", "bottom-right", and "bottom-left", applying the appropriate Tailwind positioning classes so consumers can place the toast stack where it suits their layout.

Acceptance Criteria

• A position prop is accepted with type "top-right" | "top-left" | "bottom-right" | "bottom-left"
• The container renders at the correct corner based on the prop value
• The default position (when prop is omitted) remains "top-right"
• Existing tests continue to pass

Context

• Target file: src/components/ToastContainer.tsx
• Use Tailwind fixed-position utility classes for each corner

[gloskull]

Hi, I’d love to work on this issue. I have 4 years of experience across backend, frontend, full-stack, and smart contract development. I understand the task clearly and can deliver a clean, efficient, well-tested solution on time, with strong focus on code quality and maintainability. My PR will be submitted in 8hours.

[Sagethepeak]

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

Hello, I would like to work on this issue. Please assign to me.

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

[Oryke]

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

please sir assign me this,thanks

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

[drips-wave]

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

🧑‍💻 @Oryke: 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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[grantfox-oss]

🎉 This issue has been marked as completed on GrantFox!

@Oryke's PR #717 was approved and merged by @Kingsman-99.

🏆 @Oryke: You earned 35 FoxPoints for this contribution! Your current tier: Explorer (341 total points). Track your full progress on GrantFox.

👏 Great work, @Oryke! Keep contributing to Stellar-split.