chore: Docusaurus with webpack 5

[slorber]

Use an unreleased version of Docusaurus to test the webpack5 support works for this site, detect potential problems, and perf improvements.

See also facebook/docusaurus#4089

Perf improvements

• First build (local): 30s
• Second build (local): 20s

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Note: is CRA still using Netlify?
It seems disabled since a few weeks: https://app.netlify.com/sites/create-react-app/deploys
Should the Netlify config file be deleted?
Wouldn't it be better to have docs deploy previews?

[slorber]

ready for review, let me know if anything does not work

not sure why the CI is failing 😅

[iansu]

This looks good to me, as long as the docs site still works. Is your intention that we merge and deploy this or were you just testing if it worked?

[slorber]

My intention was to test Webpack 5 on a lot of open-source sites before we release the Docusaurus 2 beta :)

https://docusaurus.io/blog/2021/05/12/announcing-docusaurus-two-beta

As it is now released, it's up to you if you want to upgrade now or not

[stale]

This pull request has been automatically marked as stale because it has not had any recent activity. It will be closed in 5 days if no further activity occurs.

[stale]

This pull request has been automatically closed because it has not had any recent activity. If you have a question or comment, please open a new issue. Thank you for your contribution!