fix(jetpack): disable Image Studio to restore Media Library custom fields

[wil-gerken]

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:

The latest release of Jetpack Image Studio replaces the standard Media Library attachment detail view with a full-screen AI editor ("Big Sky"). This hides custom fields added by other plugins, including Newspack’s photo credit fields (Credit, Credit URL, Organization).

This change disables Jetpack Image Studio by dequeuing its script and stylesheet assets on admin screens, restoring the standard Media Library attachment view and making the photo credit fields accessible again.

Closes NPPM-2705.

How to test the changes in this Pull Request:

Note: Full reproduction requires an Atomic site with Jetpack 15.7+ and Big Sky active. Local Docker environments do not include the Big Sky data store required for Image Studio to render fully.

Before applying the PR (reproduce the issue)

1. On any Newspack Atomic staging site with Jetpack 15.7+
2. Go to Media Library (grid view)
3. Click any image
4. A full-screen Image Editor Beta interface appears with AI tools
5. The photo credit fields (Credit, Credit URL, Organization) are no longer accessible

After applying the PR (verify the fix)

1. Go to Media Library and click any image
2. The standard attachment detail view appears
3. Photo credit fields are visible and editable

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?

[Copilot]

Pull request overview

Disables Jetpack Image Studio’s “Big Sky” full-screen media editor in wp-admin so the standard Media Library attachment detail view (and Newspack photo credit fields) remain accessible.

Changes:

• Hooks a new admin callback to dequeue Jetpack Image Studio assets.
• Adds disable_image_studio() to dequeue the Image Studio script and stylesheet handles.

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[github-actions]

🎉 This PR is included in version 6.36.1-hotfix-disable-jetpack-image-studio.3 🎉

The release is available on GitHub release

Your semantic-release bot 📦🚀

[Copilot]

Pull request overview

Copilot reviewed 1 out of 1 changed files in this pull request and generated no new comments.

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[adekbadek]

👌

[github-actions]

Hey @wil-gerken, good job getting this PR merged! 🎉

Now, the needs-changelog label has been added to it.

Please check if this PR needs to be included in the "Upcoming Changes" and "Release Notes" doc. If it doesn't, simply remove the label.

If it does, please add an entry to our shared document, with screenshots and testing instructions if applicable, then remove the label.

Thank you! ❤️

[github-actions]

🎉 This PR is included in version 6.36.1 🎉

The release is available on GitHub release

Your semantic-release bot 📦🚀