Reader Onboarding: add industry curated blogs

[holdercp]

Related to Automattic/dotcom-forge#9439

Proposed Changes

• Adds curated feeds/blogs for various industry sub-topics

(With Space, Business, and Remote Work followed)

Before	After

Why are these changes being made?

• The provide a better UX when suggesting sites users should subscribe to after they follow a tag

Testing Instructions

• Subscribe to at least three of the curated industry tags: "business", "startups", "finance", "space", "leadership", "marketing", "remote work", "saas", or "creator economy"
• Navigate to /read?flags=reader/onboarding
• Click "Discover and subscribe to sites you'll love"
• Check to see that recommendations make sense and you are able to subscribe

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 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-122190

Jetpack Cloud live (direct link)

https://calypso.live?image=registry.a8c.com/calypso/app:build-122190&env=jetpack

Automattic for Agencies live (direct link)

https://calypso.live?image=registry.a8c.com/calypso/app:build-122190&env=a8c-for-agencies

[matticbot]

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

Sections (~2143 bytes added 📈 [gzipped])

name    parsed_size           gzip_size
reader      +6366 B  (+0.6%)    +2143 B  (+0.7%)

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
• wpcom-block-editor

To test WordPress.com changes, run install-plugin.sh $pluginSlug add/industry-curated-blogs on your sandbox.

[holdercp]

I was seeing blog_ID: 0 in the data for external sites. Using null was incompatible with the CardData interface so I went this route. It seems to work fine.

[holdercp]

I also noticed that blogs you've already subscribed to can show up (see screenshot; Matt's blog). It doesn't make sense for those to be shown because the intention is to surface new blogs you may like, not ones you already like. But since this is a v1, and I think this an edge case for most users that will go through onboarding, I say we roll with it for now.

[DustyReagan]

Awesome! Thanks for curating these sites!