feat(media-kit): add media kit (from publisher-media-kit plugin)

[adekbadek]

All Submissions:

• Have you followed the Newspack Contributing guideline?
• Does your code follow the WordPress' coding standards and VIP Go coding standards?
• Have you checked to ensure there aren't other open Pull Requests for the same update/change?

Changes proposed in this Pull Request:

Incorporates a Media Kit page functionality, adapted from the https://github.com/10up/publisher-media-kit/ plugin:

How to test the changes in this Pull Request:

1. If publisher-media-kit plugin is active, deactivate it and ensure the media kit page and pmk-page option are deleted
2. Use the WP CLI command wp newspack-ads create-media-kit-page to create the page, observe the command outputs the created post ID
3. Run the command again, observe it informs that the page has already been created, and outputs the post ID
4. Observe a media kit page draft was created, edit it
5. Observe it has the content as in the image seen above
6. Publish the page, observe the interactive elements – the tabs in "Ad Specs" and "Our Rates" sections – are functioning properly

Other information:

• Have you added an explanation of what your changes do and why you'd like us to include them?
• Have you written new tests for your changes, as applicable?
• Have you successfully ran tests with your changes locally?

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[leogermani]

It works well. I left the media-kit plugin active on purpose to see if there would be any conflict, looks ok.

If publisher-media-kit plugin is active, deactivate it and ensure the media kit page and pmk-page option are deleted

I had to manually delete the page.

Overall it looks good, my only question is that there is no way for an existing user of the plugin to start using this feature unless they deactivate and activate the plugin.

I'm not sure I have all the context, but is that ok? Don't we want to add a button somewhere to create the page?

[adekbadek]

there is no way for an existing user of the plugin to start using this feature unless they deactivate and activate the plugin.
I'm not sure I have all the context, but is that ok? Don't we want to add a button somewhere to create the page?

That's a great remark, indeed we should not require the plugin to be re-activated. However, in our case the migration will be one by one, assisted by our team, so we have no immediate need for a UI. Instead, I've added a CLI command in 7d259fc. I've updated the testing instructions.

[matticbot]

🎉 This PR is included in version 3.1.0-alpha.1 🎉

The release is available on GitHub release

Your semantic-release bot 📦🚀

[matticbot]

🎉 This PR is included in version 3.1.0 🎉

The release is available on GitHub release

Your semantic-release bot 📦🚀