feat(Badge) : add iconId and accentColor on Badge component

[yodeyer]

Hello,

Here's a PR to be able to configure iconId and accentColor in Badge component.

Thank you

[enguerranws]

Hi!

I have some doubts about this feature: it would allow use cases for badges that are actually forbidden by the DSFR (see the Editorial Rules section here: https://www.systeme-de-design.gouv.fr/version-courante/fr/composants/badge).

In my view, the goal of react-dsfr is to implement the DSFR specs as closely as possible. That doesn’t mean it’s completely out of the question, but I think we should first check with the DSFR team to understand why this rule exists (in this case, it’s mentioned in the documentation) and see if it’s something that should be revised on their side before implementing it in react-dsfr.