[DRAFT] Docs mega nav

[vladimir-mck]

Description

This PR was created as a first step to creating a global navigation for docs as per #3024

Development notes

• Pull the branch
• Build and & start the docs

Developer Certificate of Origin

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Checklist

• Read the contributing guidelines
• Signed off each commit with a Developer Certificate of Origin (DCO)
• Opened this PR as a 'Draft Pull Request' if it is work-in-progress
• Updated the documentation to reflect the code changes
• Added a description of this change in the RELEASE.md file
• Added tests to cover my changes
• Checked if this change will affect Kedro-Viz, and if so, communicated that with the Viz team

[datajoely]

No comment other than rad PR title

[stichbury]

This is great, thanks @vladimir-mck!

Built docs are here for people wanting a preview: https://kedro--3168.org.readthedocs.build/en/3168/#

I'm not sure how much review you want at this as it's in draft, but I've added @stephkaiser and @tynandebold here for visibility and their thoughts.

From my side, some basic comments:

• We won't need the "Deployment" section for now -- only Framework, Viz and Datasets.
• Please can you title them as "Kedro" "Kedro-Viz" and "Kedro-Datasets" (to align their naming with what's on https://pypi.org
• I'm not sure whether this is related but in the preview build, I can't scroll to the bottom of the table of contents to see the kedro_datasets API docs, whereas I can in the stable docs. It may be nothing to do with your changes but I wanted to flag it.

[astrojuanlu]

Marking this as a draft, feel free to mark it as ready for review whenever you want @vladimir-mck 👍🏽 The style changes are looking good so far!

[stichbury]

@vladimir-mck I've changed the base branch to develop as we are working over there now.

[vladimir-mck]

Closing this PR, it will be handled with this one