chore: update node version to v20

[CathrinTruchan]

DESCRIPTION

The node version has been updated to v20.

TO-DO

• [ ] ~implement and update tests~
• [x] update docs
• [x] pull main & resolve merge conflicts
• [x] check Vercel deployment

CLOSES

closes #530

[vercel[bot]]

The latest updates on your projects. Learn more about Vercel for Git ↗︎

Name	Status	Preview	Updated (UTC)
app	✅ Ready (Inspect)	Visit Preview	Mar 21, 2024 10:52am
docs	✅ Ready (Inspect)	Visit Preview	Mar 21, 2024 10:52am

[nx-cloud[bot]]

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[CathrinTruchan]

I pushed an additional change to the docs. Looks good! 🙂

Perfect! Thanks for updating the docs 🙂