fix: add role to element

[lionelB]

I"ve added some role attribute for better a11y. For now, It miss aria-activedescendant which reference child's id I'm not sure on how to add the correct id on items and reference the active id (focus / hover) on the input if you have any advice I can update the PR

[mskocik]

I would wait with this. I would like to have a11y support fully implemented, but I need to do more research about it

[mskocik]

Let me know if new a11y support in v4 is enough. I am not an expert in this area. And raise a new issue, if there is something missing.

I am closing this since it's incompatible with new code