Migrate to Docusaurus 3.0

[thadguidry]

Older versions of Docusaurus will not receive security updates after Jan 31, 2024.
Also, there are many new improvements, here's a few:

• MDX v3
• CommonMark
• Mermaid Mindmap and Quadrant charting
• Debug build
• etc.

and fixes, as well as some breaking changes, but I don't expect us to have hardly any breaking changes.

Press Release: https://docusaurus.io/blog/releases/3.0

[aakash-a-dev]

I went through the documentation, and did a check just 5 more pages remaining to rectified then will be able to see the updated packages in action.

Errors remaining are
[ERROR] 5/114 MDX files couldn't compile!

Error while compiling file docs/manual/grelfunctions.md (Line=319 Column=15)
Details: Could not parse expression with acorn

Error while compiling file docs/manual/wikibase/configuration.md
Details: These MDX global variables do not seem to be available in scope: batch_id lang version

Error while compiling file docs/technical-reference/migrating-older-extensions.md
Details: These MDX global variables do not seem to be available in scope: basedir

Error while compiling file docs/technical-reference/openrefine-api.md (Line=198 Column=49)
Details: Could not parse expression with acorn

Error while compiling file static/img/2022survey/2022-survey-openanswers.md (Line=544 Column=3)
Details: Expected a closing tag for <cheeky> (544:423-544:436) before the end of paragraph