Menu (FlatList) viewport doesn't follow the selected item

[gillchristian]

When there are more items than the Menu/FlatList shows it doesn't follow the selectedItem.

You can see here: https://www.youtube.com/watch?v=xPhhNNhfVkM

I changed my menu config form <C-N>/<C-P> to <C-J>/<C-K>.

I'd like to give it a shot at fixing it.

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Here is what I believe should be the behavior for the menu

List shorter than view:

Current:

Expected? (This is how VS Code menu works)

List is longer than view

Current

Expected

[glennsl]

FYI: I'm working on this as part of the menu renovation project.