3.0.0: Nazeh/css namespace (#187)

* Change CSS namespacing

Update components to use namespaced classNames
Update tests & snaps to use namespaced classNames
Update less to use namespace reactist_
Update version, changelog and static artifacts

* Update version to 3.0.0

* Fix Tabs component's --spreadlayout modifier

* Final release preparations

Co-authored-by: Ar Nazeh <Ar.nazeh@gmail.com>

2.0.2-gpr.01: Create publish.yml

GitHub Action to publish @doist/reactist package to both npm and GitHub Package registry

2.0.2

Update date format to remove yesterday (#183)