added fullwidth prop to Select

[luhis]

Checking the Bulma docs, the is-fullwidth class option is missing on the Select component: https://bulma.io/documentation/form/general/

I just followed the methodology used on the Control component, I hope this is what we need.

[kennethnym]

There is fullwidth prop already on the Control component that applies the is-expanded modifier. Does that not work properly?

[luhis]

There is fullwidth prop already on the Control component that applies the is-expanded modifier. Does that not work properly?

It works, but we also need to use is-fullwidth on the select container to get the select to be full width

[couds]

Hi Sorry for the late response, Event that the Bulma docs do not mention the is-fullwidth on the select I saw it on the scss code So I will merge this PR.

Thanks for the contribution