Update install and use instructions for cardano-node

[jasagredo]

Checklist

• I have read the How to Contribute.
• I have run yarn build after adding my changes without getting any errors.
• I have not committed any changes to yarn.lock (or have removed these changes).

Updating documentation or Bugfix

I updated the steps for building the node:

• Split the system libraries section in tabs by operating system
• Expand the Windows MSYS2 tab there
• Provide more info on specific libraries needed
• Update some env-vars examples
• Account for cardano-cli not living in cardano-node repository.
• Properly mention which folder might need to be deleted. If a user deletes db entirely they will have to sync from scratch.

Also for the running example I updated the output with that of a recent cardano-node.

This PR is based on #1451, so reviewing is probably best done by seeing only the changes in the last commit, plus disabling whitespace changes.

If wanted I could merge this one without the other one, but I needed it in order to have a local web server for previews.

[rdlrt]

Nice one..
Left some comments (sorry those may not necessarily be relevant within scope of this PR, but since they're touched - we might as well update things like disk space usage from node 🙂 )
Also, unless intentional - I believe the lock files shouldnt be checked in on documentation updates (perhaps check-in via #1451 makes more sense instead)?

[jasagredo]

I re-submitted this PR without the update to docusaurus. Unfortunately I cannot test it locally anymore so I hope it works fine. I adressed the comments above.

[rphair]

@jasagredo this is going to save SPOs and builders a lot of trouble in the days ahead. ⭐ Thanks for factoring out the Docusaurus while we get a consensus how to handle that. I tested the branch locally with

git fetch upstream pull/1453/head:v-1453
git checkout v-1453

and it builds properly, looks and works fine. The style sheet change for the tabs looks good to me & I think is a general improvement in case it cascades into the rest of the site. All changes I recall from @rdlrt's review are also here as far as I can tell. Thanks for all the extra work on this beyond the initial submission. 🙏

[CarlosLopezDeLara]

Awesome!