Update the stats icon and add pageview count in the post list

[BogdanUngureanu]

Updates the icon in the Post and Page lists and adds the page view count for each post. The code was also moved in Stats Admin package so that we can be able to reuse the implementation in WPCOM Simple.

The counter displayed in the post list displays the number of views an article had in the last 30 days.

Fixes Automattic/wp-calypso#98912

Before

After

Proposed changes:

• Change the icon in the post list
• Add the page views next to the icon for each post
• Move the logic in a separate class so that it can be reused in WPCOM Simple

Other information:

• Have you written new tests for your changes, if applicable?
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Jetpack product discussion

Does this pull request change what data or activity we track or use?

Testing instructions:

• Use the beta tester on an Atomic site and apply these changes
• Apply the changes on your sandbox
• Checkout the branch from 176412-ghe-Automattic/wpcom on your sandbox
• Go to WP-Admin > Posts / Pages (both Atomic and Simple)
• Notice that we display a different icon for the stats column, with a number of page views

[github-actions]

Are you an Automattician? Please test your changes on all WordPress.com environments to help mitigate accidental explosions.

• To test on WoA, go to the Plugins menu on a WoA dev site. Click on the "Upload" button and follow the upgrade flow to be able to upload, install, and activate the Jetpack Beta plugin. Once the plugin is active, go to Jetpack > Jetpack Beta, select your plugin (Jetpack or WordPress.com Site Helper), and enable the update/stats-icon branch.
• To test on Simple, run the following command on your sandbox:

bin/jetpack-downloader test jetpack update/stats-icon

bin/jetpack-downloader test jetpack-mu-wpcom-plugin update/stats-icon

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[github-actions]

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Code Coverage Summary

Coverage changed in 2 files.

File	Coverage	Δ%	Δ Uncovered
projects/packages/stats/src/class-wpcom-stats.php	85/126 (67.46%)	4.84%	1 ❤️‍🩹
projects/plugins/jetpack/modules/stats.php	3/580 (0.52%)	0.03%	-41 💚

1 file is newly checked for coverage.

File	Coverage
projects/packages/stats-admin/src/class-admin-post-list-column.php	71/84 (84.52%) 💚

Full summary · PHP report · JS report

[BogdanUngureanu]

Most of the code here is just moved from modules/stats.php.

We need to move it in a separate class to also use it on Simple Sites.

[BogdanUngureanu]

Hey @Automattic/red Can you have a look at this PR?

This adds a counter in the WP-Admin -> Post list with the number of pageviews a user had in the last 30 days (the same amount of days we used to display in Calypso Post list).

However, there's no UI indication that it's for the last 30 days (like we do in Calypso).

How do you feel about changing the title of the link from "View stats for this post" to something like "X views in the last 30 days. View more stats"?

[dsas]

This works nicely for me, and it's good to see more of the implementation unified.

The one last thing remaining is the question about how to make it clear to users what they're looking at.