fix(ui): fix iOS bottom-sheet accessibility for Maestro E2E tests

Set accessible={false} on BottomSheetModal on iOS. Since v4.6.0,
@gorhom/bottom-sheet defaults accessible={true} which groups all
children into one accessibility element, hiding them from XCUITest
(and Maestro). See github.com/mobile-dev-inc/Maestro/issues/1493

Author: pete-watters

packages/ui/src/components/sheet/sheet.native.tsx

@@ -1,5 +1,5 @@
 import { RefObject, useEffect, useState } from 'react';
-import { BackHandler } from 'react-native';
+import { BackHandler, Platform } from 'react-native';
 
 import BottomSheet, {
   BottomSheetModal,
@@ -63,6 +63,7 @@ export function Sheet({
 
   return (
     <BottomSheetModal
+      accessible={Platform.OS === 'ios' ? false : undefined}
       onChange={handleChange}
       backdropComponent={SheetNativeBackdrop}
       backgroundStyle={[styles.background, backgroundStyle]}