refactor(Label): Refactor Label component to use CSS modules behind feature flag (#4893)

* Convert Label to css modules

* Align padding

* Create purple-apricots-relax.md

* Adjust font-weight variable

* Fix lint

* Adjust expected styles

* test(vrt): update snapshots

* Fixing the border colors

* Fix primary default border

* Now fix the border

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Co-authored-by: jonrohan <jonrohan@users.noreply.github.com>

Author: jonrohan