stats-authors: toggle the "authors" module when there is only one to be displayed

[macbre]

Resolves #80534

Proposed Changes

• This PR toggles the stats "Authors" module when only a single author statistic can be rendered there.

Testing Instructions

Find a site with just a single author active and a site with more active authors:

• http://calypso.localhost:3000/stats/day/farerskiekadry.pl
• http://calypso.localhost:3000/stats/week/`<your team's P2 domain>`?chartStart=2024-09-05&chartEnd=2024-12-03

Pre-merge Checklist

• Has the general commit checklist been followed? (PCYsg-hS-p2)
• Have you written new tests for your changes?
• Have you tested the feature in Simple (P9HQHe-k8-p2), Atomic (P9HQHe-jW-p2), and self-hosted Jetpack sites (PCYsg-g6b-p2)?
• Have you checked for TypeScript, React or other console errors?
• Have you used memoizing on expensive computations? More info in Memoizing with create-selector and Using memoizing selectors and Our Approach to Data
• Have we added the "[Status] String Freeze" label as soon as any new strings were ready for translation (p4TIVU-5Jq-p2)?
  • For UI changes, have we tested the change in various languages (for example, ES, PT, FR, or DE)? The length of text and words vary significantly between languages.
• For changes affecting Jetpack: Have we added the "[Status] Needs Privacy Updates" label if this pull request changes what data or activity we track or use (p4TIVU-aUh-p2)?

[matticbot]

Calypso Live (direct link)

https://calypso.live?image=registry.a8c.com/calypso/app:build-126512

Jetpack Cloud live (direct link)

https://calypso.live?image=registry.a8c.com/calypso/app:build-126512&env=jetpack

Automattic for Agencies live (direct link)

https://calypso.live?image=registry.a8c.com/calypso/app:build-126512&env=a8c-for-agencies

[matticbot]

Here is how your PR affects size of JS and CSS bundles shipped to the user's browser:

Sections (~83 bytes added 📈 [gzipped])

name   parsed_size           gzip_size
stats       +124 B  (+0.0%)      +83 B  (+0.0%)

Sections contain code specific for a given set of routes. Is downloaded and parsed only when a particular route is navigated to.

Legend

What is parsed and gzip size?

Parsed Size: Uncompressed size of the JS and CSS files. This much code needs to be parsed and stored in memory.
Gzip Size: Compressed size of the JS and CSS files. This much data needs to be downloaded over network.

Generated by performance advisor bot at iscalypsofastyet.com.

[matticbot]

This PR modifies the release build for the following Calypso Apps:

For info about this notification, see here: PCYsg-OT6-p2

• notifications
• odyssey-stats
• wpcom-block-editor

To test WordPress.com changes, run install-plugin.sh $pluginSlug stats/hide-authors-components on your sandbox.

[kangzj]

I'm afraid even if there is only one author in the response, but it wouldn't necessarily mean the site only has one author.

[macbre]

What condition should I use instead?

[jwebbdev]

There's a useUsersQuery that can take a author_only: 1 option which may be able to get a list of authors on the site that you can check the size of.

[kangzj]

I left a comment in the issue:

#80534 (comment)

[macbre]

Will be implemented in the backend code.