[Autocomplete] Add multiple section groups on autocompletion list

[lucasfrosty]

Feature request summary

The OptionList component provides a way to group options into multiple sections, as shown on the screenshot above:

Screenshot

However our current Autocomplete implementation is focused on single sections instead, with the possibility of using a listTitle prop to add a title to that single section that is created.

The request is to create the same idea of multiple sections that OptionList has, but in the Autocomplete component as well.

Since Autocomplete actually uses OptionList it wouldn't be too hard to implement, however the big challenge sits around how to make the options and listTitle props API update in a way that won't be a breaking change. I have some ideas but first i'd like to know some thoughts on the UX side and then, if we get a 👍 , we can discuss the API implementation and i'd happily start the implementation of this feature.

Thanks!

cc @luanpy

[aminick]

Upvote for this. This is essential.

[yurm04]

This change was implemented and is available now in the Autocomplete component. Thanks @lucasfrosty !