Having trouble getting the example form builder working with new versions of @dnd-kit

[brandoncordell]

@dnd-kit seems to have changed quite a bit since the basic form builder example. I followed the migration guide on the website and used it's built-in AI to get things changed over but I'm having trouble getting it to work with builder.

The rest of the builder works great, but sorting is the main issue. I think it's due to the fact that sortable now needs an index passed to it, e.g.

{items.map((item) => <Sortable id={id} index={entity index} />}

Is there a good way to map through BuilderEntities, grabbing the index of each?