UX-027 UI/UX: Add consistent toast/notification pattern (placement, duration, actions, and a11y)

[Baskarayelu]

Implement a standardized toast/notification UX pattern

Description

Define and apply a consistent toast pattern for lightweight feedback (success, warning, error) with clear placement, dismissal behavior, optional actions, and accessible announcements.

Requirements and context

• Must be accessible, tested (visually), and documented
• Should be efficient and easy to review

Suggested execution

• Fork the repo and create a branch
  • git checkout -b uiux/toast-notification-pattern
• Implement changes
  • Define toast layout and interaction rules
  • Ensure announcements use appropriate aria-live strategy
  • Apply to key flows (send, bills, settings)

Test and commit

• Verify keyboard navigation and screen reader announcements

Example commit message

feat(uiux): add standardized toast/notification feedback pattern

Guidelines

• WCAG 2.1 AA
• Timeframe: 96 hours

[GreatShinro]

@GreatShinro has applied to work on this issue as part of the Stellar Wave Program's 4th wave.

Hi, I would like to work on this

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

[drips-wave]

Congratulations, @GreatShinro! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on April 29, 2026.

🧑‍💻 @GreatShinro: 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 🌊