feat: improve accessibility on iOS and Android

[lodev09]

Summary

• Add accessibility roles, labels, hints, and state values to the grabber view on both platforms
• Enlarge iOS grabber hit area to match native UISheetPresentationController sizing
• Add VoiceOver increment/decrement support (iOS) and TalkBack scroll actions with labels (Android)
• Hide dim view from accessibility on Android

Type of Change

• New feature

Test Plan

• Enable VoiceOver (iOS) / TalkBack (Android) and verify grabber is announced as "Sheet Grabber"
• Verify swipe up/down on grabber changes detent and announces "Expanded" / "Collapsed"
• Verify iOS grabber hit area matches native grabber sizing via Accessibility Inspector
• Verify dim view is not focusable by TalkBack on Android

Checklist

• I tested on iOS
• I tested on Android
• I tested on Web
• I updated the documentation (if needed)
• I added a changelog entry (if needed)

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Project	Deployment	Actions	Updated (UTC)
react-native-true-sheet	Ready	Preview, Comment	Mar 3, 2026 1:21am