A11y : adding default colors on labels for checkbox and radio

[matthieu-castier]

I want to propose an evolution/improvement on

Component

Description

I test all default colors on my module (with forms).

I see that for checboxes and radiolist, there is no default colors on labels.

Describe the solution you would like

Adding a default dark color on label for :

• https://github.com/adeo/mozaic-design-system/blob/master/packages/styles/components/_c.checkbox.scss#L10
• https://github.com/adeo/mozaic-design-system/blob/master/packages/styles/components/_c.checkbox.scss#L10

Describe the alternatives you considered

No response

Additional comments

To test, change the default colors in firefox :