Initial restructure PoC

[alexandratran]

Signed-off-by: Alexandra Tran alexandra.tran@consensys.net

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Describe the change

• Restructure the entire site to separate public and private network content. Common content is maintained in the public section and linked to from the private section overviews.
• Add all redirects for moved, renamed, or deleted pages.
• Update home page, add architecture to home page, add private and public network section overviews.
• Combine and update:
  • Mining content into a "Configure mining" page.
  • All onchain permissioning content into one page.
  • Key management content into "Send transactions" page.
  • Client and server TLS content into one page.
  • Bootnode content into one page.
  • Protocol upgrade content into one page.

Future PRs will address more content and feature updates and additions.

Issue fixed

fixes #1078
fixes #1091
fixes #1092
fixes #1093
fixes #1094
fixes #1095
fixes #1096
fixes #1097

Impacted parts

For content changes:

• Documentation content
• Documentation page organization

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• CircleCI workflow
• Build and QA tools (for example, lint or vale)
• MkDocs templates
• MkDocs configuration
• Python dependencies
• Node dependencies and JavaScript
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Preview

https://hyperledger-besu--1085.org.readthedocs.build/en/1085/

[NicolasMassart]

I think the plan should be to merge #1113 first then update this PR and so you have everything to push a complete content structure update with home page grid boxes and all the things.

[bgravenorst]

I only did a first pass checking language etc. I'll do a structural review next.

[non-fungible-nelson]

LGTM

[non-fungible-nelson]

All looks good! We may have to tweak as we go forward but this is an awesome first step!

[NicolasMassart]

This PR looks good to me.
I suggest that you start with this refactoring and in another PR we could add the tags (to improve the visibility of the private public split) and icons on the two private/public sections and tags.