Add Radio and RadioGroup to the library

[huyenltnguyen]

Description

I'm not sure if it's worth it, but I think we could make the RadioGroup and Radio components from QuizQuestion standalone components.

The components will be still used as the building blocks for QuizQuestion, but also can be exported and used separately.

Places in /learn that I think could use these components:

• https://github.com/freeCodeCamp/freeCodeCamp/blob/main/client/src/components/settings/toggle-radio-setting.tsx