iOS Picker fixes

[YoussefHenna]

• Fixes jumping picker to previous state
• fix picker item color not respecting theme

---

Important

Fixes iOS picker state management and theme color issues by introducing NativePicker.ios.tsx and updating NativePicker.tsx.

• Behavior:
  • Fixes picker jumping to previous state by managing state within PortalPickerContent in NativePicker.ios.tsx.
  • Picker item color now respects theme by setting color in NativePickerComponent.Item to theme.colors.text.strong in NativePicker.ios.tsx.
• File Changes:
  • New NativePicker.ios.tsx file created to handle iOS-specific picker behavior.
  • Removed iOS-specific code from NativePicker.tsx, focusing it on Android and web platforms.

^{This description was created by for b4814b2. You can customize this summary. It will automatically update as commits are pushed.}

[github-actions]

Published version: @draftbit/ui@53.0.5-6f875c.2