Scrollable negotiation
By default, the sheet coordinates vertical gestures with nested scrollables,
such as ScrollView and FlatList.
If you want gestures that start inside a nested scrollable to stay with that
scrollable even when it cannot scroll any further,
set disableScrollableNegotiation:
<BottomSheet
index={index}
onIndexChange={setIndex}
surface={/* ... */}
disableScrollableNegotiation
>
{/* ... */}
</BottomSheet>