Update to latest version of docsy

[dtzar]

This is a Feature Request
Update to the latest version of docsy. There are significant breaking changes when the project switches to bootstrap v5..

Optional consideration with this feature update - use the latest recommended pattern with docsy to install with go modules versus git submodules.

I really believe we need to have someone get an updated hugo/docsy template with the latest docsy version which works with various features, especially the google/docsy-example#254.

Related sig meeting discussion in case others care to know more.
CNCF Tech Docs office hours

Why is this needed
To continue to keep up with code fixes/enhancements of the documentation website.

### Tasks

[k8s-ci-robot]

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[sftim]

/area web-development
/priority important-longterm

[sftim]

Ah, this is actually almost a duplicate of #44002

/triage duplicate
/remove-priority important-longterm

Thanks for filing it anyway!

[dipesh-rawat]

Closing in favor of #44002
/close not-planned

[k8s-ci-robot]

@dipesh-rawat: Closing this issue, marking it as "Not Planned".

In response to this:

Closing in favor of #44002
/close not-planned

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.