Add role "combobox" to Combobox component about vibe

[hadasfa]

@vivek32ta Sure :) Let's do this. I'll check your PR when it's ready.

[vivek32ta]

Hi @hadasfa, I'd love to take this up

[hadasfa]

@vivek32ta do you still working on this PR?

[vivek32ta]

@hadasfa Yes yes. I am. I was just confused a bit with the codebase. This is the first time I'm working on a UI package. Sorry, please excuse me for the delay. I was stuck if I have to add the role in just Combobox component or add it to its child components as well, like Search and TextArea, because there is no role attribute in the props passed.

[aayushbisen]

Combo box component renders a Search input which has a default role value search.

Do we need to customize the Search prop structure to give the required role in Combo box?