feat(Theme): enhance theming and UI consistency across components

- Updated app.json to set userInterfaceStyle to automatic for improved theme adaptability.
- Refactored layout components to utilize useAppColors for dynamic theming, ensuring consistent color usage.
- Introduced SystemChrome component to manage system UI background color based on theme.
- Enhanced TabsLayout, ProfileStackLayout, and other components to leverage new theming structure.
- Improved QRCodeScanner, SearchBar, and CommentItem styles to align with the updated theme system.
- Consolidated styles in SystemMessageItem and TabBar for better maintainability and visual coherence.

src/screens/message/components/ChatScreen/index.ts

@@ -9,7 +9,7 @@ export * from './types';
 export * from './constants';
 
 // 样式
-export { chatScreenStyles } from './styles';
+export { createChatScreenStyles, useChatScreenStyles } from './styles';
 
 // 组件
 export { EmojiPanel } from './EmojiPanel';