Extract common UI components into a design system package

[Smartdevs17]

Description

UI components are duplicated across screens. Extract into a shared design system with consistent styling, theming, and accessibility.

Acceptance Criteria

• Design token system (colors, spacing, typography, shadows)
• Base component library (Button, Input, Card, Modal, Toast)
• Theme-aware components with dark mode
• Accessibility compliance (WCAG 2.1 AA)
• Component documentation with Storybook
• Visual regression tests

Technical Scope

• src/components/common/
• src/theme/
• src/components/ui/
• Edge: platform-specific styling (iOS vs Android), RTL layout support, font scaling

[Adeyemi-cmd]

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

Hello maintainer please assign to me

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

[drips-wave]

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

🧑‍💻 @Adeyemi-cmd: 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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