feat(react): add initial content switcher refactor

[joshblack]

Initial implementation of #9519

This PR adds in a base implementation and API for the new ContentSwitcher component

Changelog

New

• Add initial implementation of ContentSwitcher for v11

Changed

Removed

Testing / Reviewing

• Pull down the PR locally and run the storybook in packages/react
• Comment the line in next/ContentSwitcher-story.js that says includeStories: []
• Try out the story and make sure that the ContentSwitcher works with both keyboard and mouse for switching the panels

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[tw15egan]

Tab focus working as expected, arrow key navigation working, selection via enter / spacebar working, and no accessibility violations 👍🏻 ✅

[dakahn]

Checks out on Edge 👍🏾