ChoiceList.Radio should have clickable hint and correct label styling

[oliver3]

Mentioned by @jorisleker in #984 (review) :

• The name of the role should be bold Edit: font-weight 400 and base-black (see Figma)
• Extend the label so clicking the role name and/or the description will check the radiobutton

[Lionqueen94]

Make sure the bold is optional, since on other places it should not be bold (polling station create, data entry recounted for example

[oliver3]

After going through the designs, we noticed some inconsistencies for the font weights in combination with color. We concluded that there should only be one font weight and color for the checkbox and radio labels, which is font-weight 400 with base-black.

The description should still be made clickable by surrounding it with the label tag.