Bump Docsy to 0.7.x

[lmktfy]

This PR upgrades to a newer version of Docsy: 0.7.2
It is based on PR #48725

Here are some previews:

• /community/
• /blog/
• /docs
• /docs/tutorials/hello-minikube/
• /releases/download/
• /docs/tasks/tools/install-kubectl-macos/
• /docs/reference/glossary/?fundamental=true&extension=true
• /docs/reference/kubernetes-api/cluster-resources/namespace-v1/
• /docs/concepts/services-networking/ingress/

Relevant to issue #44002

/area web-development

Fixes #49430

[linux-foundation-easycla]

The committers listed above are authorized under a signed CLA.

• ✅ login: lmktfy / name: Tim Bannister (0c54df3, 3f78ef9, 5f4245e, 79c18b5, 7a1a0b7)

[lmktfy]

It's now configurable (and we do want it on, I think).

[lmktfy]

Hmm, it previewed OK locally.

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[lmktfy]

Turns out, it looks great, but the right-hand sidebar is missing.

[lmktfy]

I prepared a backport to the v1.33 docs.

If we time this well, we can have the docs for v1.33, v1.34 and v1.35 all using the same Docsy theme, near as. That will help with usability.

[Andygol]

/lgtm

[SayakMukhopadhyay]

Turns out, it looks great, but the right-hand sidebar is missing.

This is a blocker for this PR right? I will take a look at this to figure out what's going wrong.

[dipesh-rawat]

Some great work here! I’ve browsed through the preview site and noticed a few areas that might need attention.

My main concern is that the live docs website is referenced in the Kubernetes certification exam, so we need to ensure usability and consistency.

Below are the observations (verified on macOS using Chrome, Firefox and Safari):

• Navbar layout has extra space on the left and might need alignment adjustments.

• There is a slight overflow or scroll on the left side of the site.

• In the footer, Bluesky and X social icons seem missing, and the Bluesky icon is not rendering on the blog index page.

• Meta-links on the right has slight odd spacing (looks like the Print section seems to have its own id which is adding the padding).

• The Table of Contents on the right-hand side is missing.

• Feedback buttons appear to be gone. Was this intentional?
  (From the live site)

• Auto-generated reference pages are missing the banner at the end.
  (From the live site)

• Mobile view for auto-generated reference pages appears broken.

Q) Are we confident the upgrade will work as expected when the site banner (upcoming KubeCon) is displayed?

[lmktfy]

Great stuff. I really appreciate the feedback.

/lgtm cancel
This isn't yet good enough to merge.

Here's what I would and wouldn't personally accept as a regression. In other words, these are my opinions. Anyway, here goes:

• Bluesky icon
  accept - we can fix that as a fast-follow thing, and if it's wrong people will be motivated to intervene. Exam candidates should not be using Bluesky, of course.
  Maybe an even newer Docsy supports the Bluesky icon properly.

• Tabs
  block until fixed - we need working tabs

• Autogenerated pages, mobile view
  block until we have these at least good enough

• Table of contents
  block until fixed - we need the right hand of the page to show a TOC

• Automatically generated page banner
  accept; when we merge, file an issue about reinstating it.

• Docsy 0.7 style navigation bar
  accept
  (only relevant in desktop view; mobile has one or two hamburger menus)
  I see that as a feature more than a bug. Is it important that we keep the top menu looking like it did before?

• Kubernetes logo wrong in print version
  accept; when we merge, file an issue about addressing it.

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[lmktfy]

Folks, if you're willing to re-review, this might be good to go.

But if you spot a release blocker, that's super helpful. We don't want to break the UX enough that we'd need to revert.

[lmktfy]

There is a slight overflow or scroll on the left side of the site.

I couldn't reproduce this, BTW.

[lmktfy]

Things I think are fixed:

1. Tabs
   They work now!
2. Autogenerated pages, mobile view
   They seem fine.
3. In the right-hand nav part of a page, you see a table of contents unless it is disabled for that page.

I haven't tested site banners post-upgrade. We don't have an imminent KubeCon or other major event and could work separately, after the merge of this PR, to assure that they work OK.