feat(component): Add Sheet component

[tailwiinder]

Component Description

Component Name: Sheet

Purpose: Sheet component for NativeCN

Similar Components: Sheet in shadcn/ui

Technical Requirements

Core Features

• Basic component functionality
• Props interface defined with TypeScript
• NativeWind styling support
• Proper component state management
• Accessibility support (ARIA attributes, screen reader compatibility)

Note: Reference shadcn/ui default theme for styling guidelines, props structure, and additional features inspiration.

Variants/Props

• Variant 1: [Description]
• Variant 2: [Description]
• ...

Development Checklist

• Implement in example app first
  • Test in Expo example (examples/expo/nativecn)
  • Verify functionality
  • Test different use cases
• Create component templates
  • packages/cli/templates/<component-name>/index.tsx.template
  • packages/cli/templates/<component-name>/styles.ts.template
• Update CLI dependencies if needed
• Test component addition via CLI
  • npx nativecn add <component-name>

Documentation Requirements

• JSDoc comments for component and props
• Usage examples with code snippets
• Props documentation
• Styling guide
• Accessibility instructions
• Known limitations or caveats (if any)

Testing Criteria

• Works in Expo environment
• Responsive behavior
• Touch interactions work as expected
• Accessibility features tested
• Different variants/props tested
• Error states handled properly

Additional Notes

Definition of Done

• Component implemented and tested in example app
• Component templates added to CLI
• Documentation complete
• PR submitted following contribution guidelines
• Code review feedback addressed
• All tests passing