chore: upgrade storybook from v5 to v6 (#9062)

* chore(react): begin storybook v6 migration

* fix(storybook): use carbon-react babel-loader exclusions

* docs(Tag): update storybook action import

* chore: regenerate lockfile

* chore: dedupe packages

* docs(storybook): restore favicon

originally added in #7866, relocated (#8630), but never reverted (#8684)

* docs(storybook): add style overrides

* chore: update lockfile

* style(Welcome): fix background

Co-authored-by: TJ Egan <tw15egan@gmail.com>
Co-authored-by: kodiakhq[bot] <49736102+kodiakhq[bot]@users.noreply.github.com>

Author: 3 people