FlatList does not animate when running `scrollToIndex({..., animate: true})`

[jpnickolas]

FlatList does not animate when scrolling to an index using FlatList.scrollToIndex({..., animate: true}).

Based on these lines, it looks like this may be an issue with all ScrollView scrollTo* functions on mac:
https://github.com/microsoft/react-native-macos/blob/master/React/Views/ScrollView/RCTScrollView.m#L718-L719

[chrisglein]

Looking at the code it appears this just sets the value instead of animating it. So this is not yet implemented.