chore(storybook): upgrade to 8.0 & remove react deps

[florian-sanders-cc]

What does this PR do?

• Upgrades storybook to 8.0,
• Adapts the markdown-to-csf.js file to the only breaking change impacting us (apparently),
• Removes the react & read-dom dependencies since they are no longer required by Storybook (they come with Storybook as it should always have been) :tada:

How to review?

• Check both locally & preview:
  • all stories are still working,
  • all controls and shortcuts ("i" within a story to change the language) are still working,
  • the menu is still properly ordered,
  • should be enough?

[github-actions[bot]]

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[florian-sanders-cc]

Do we want to opt-out of the Storybook telemetry? 🤔

Good question :+1:

[florian-sanders-cc]

Well done Flo.

Unfortunately, the stories and docs are broken for controllers and mixins.

Ah yes, thanks for this :muscle: I forgot to propagate the change done within markdown-to-csf to the story files of templates & controllers :sweat_smile:. The default export now contains the doc render function directly so they should rely on the default export directly.

[github-actions[bot]]

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