Stats: adds replacement subscribers chart

[annacmc]

Related to #

Proposed Changes

• This PR replaces the subscribers page line chart with the new chart library line chart
• It is only visible behind the feature flag
• It is not currently wired up for correct data, it's just dummy data
• This is a followon PR from Stats: adds chart library feature flag #99316

Testing Instructions

• Open Calypso live branch
• Navigate to /stats/subscribers/{URL}i?flags=stats/chart-library
• Check everything appears as normal
• Append feature flag flags=stats/chart-library
• Check you can now see the new chart as pictured below

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)?

[github-actions]

Calypso Live (direct link)

https://calypso.live?image=registry.a8c.com/calypso/app:build-132701

Jetpack Cloud live (direct link)

https://calypso.live?image=registry.a8c.com/calypso/app:build-132701&env=jetpack

Automattic for Agencies live (direct link)

https://calypso.live?image=registry.a8c.com/calypso/app:build-132701&env=a8c-for-agencies

[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 add/stats-subscribers-chart-add-new-library on your sandbox.

[matticbot]

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

Async-loaded Components (~192 bytes added 📈 [gzipped])

name                                                 parsed_size           gzip_size
async-load-calypso-my-sites-stats-pages-subscribers       +683 B  (+0.5%)     +192 B  (+0.4%)

React components that are loaded lazily, when a certain part of UI is displayed for the first time.

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.

[kangzj]

We should have use different color for Calypso

[annacmc]

Yup absolutely. On my current PR list to add a Calypso color theme to the chart library, which we can use webpack in Odyssey to replace it with the Jetpack theme.

[kangzj]

Happy to keep the dummy data for now, but let's remove it before going live

[annacmc]

Yep totally 👍 This is just a small chunk of a PR to put the chart component in. Will definitely replace the dummy data in one of my followup PRs. Just making an adjustment to the component structure to handle both realtime (as currently) data and static/periodic data.

[kangzj]

Nice work! Let's ship and iterate after addressing lazy loading!

I also noticed the numbers are cut off for Y axis: