Show error messages on the custom post types screens

[crazytonyli]

Note

This PR will be merged after #25157

[dangermattic]

	3 Warnings
⚠️	Translation files *.lproj/Localizable.strings should only be updated on a release branch.
⚠️	View files have been modified, but no screenshot or video is included in the pull request. Consider adding some for clarity.
⚠️	This PR is larger than 500 lines of changes. Please consider splitting it into smaller PRs for easier and faster reviews.

	1 Message
📖	This PR is still a Draft: some checks will be skipped.

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[wpmobilebot]

📲 You can test the changes from this Pull Request in WordPress by scanning the QR code below to install the corresponding build.

	App Name	WordPress
	Configuration	Release-Alpha
	Build Number	30657
	Version	PR #25180
	Bundle ID	org.wordpress.alpha
	Commit	85c6e56
	Installation URL	6ikv6vntcpq50

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[wpmobilebot]

📲 You can test the changes from this Pull Request in Jetpack by scanning the QR code below to install the corresponding build.

	App Name	Jetpack
	Configuration	Release-Alpha
	Build Number	30657
	Version	PR #25180
	Bundle ID	com.jetpack.alpha
	Commit	85c6e56
	Installation URL	0jf2l2tk74jbg

Automatticians: You can use our internal self-serve MC tool to give yourself access to those builds if needed.

[sonarqubecloud]

Quality Gate passed

Issues
42 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
2.2% Duplication on New Code

See analysis details on SonarQube Cloud

[wpmobilebot]

🤖 Build Failure Analysis

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