Display errors when building the editor for docs

[filipsobol]

🚀 Summary

Show the actual error that caused the docs build to fail instead of only showing a generic error Command failed with exit code 1 message.

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📌 Related issues

• Closes Display errors when building the editor for docs #18810

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💡 Additional information

Before:

After:

[CKEditorBot]

📢 Changelog entry reminder

Hi there! 👋

Thanks for opening this pull request! If your changes affect end users, please add a changelog entry to describe them.
We use a Markdown-based system - see the Changelog entries guide for details.

✍️ How to

Run the following command:

yarn run nice

This guide will help you create a new changelog file. You can add as many entries as needed – one per distinct change.

Note

Skip internal changes, such as typo fixes or refactors, as they won't be included in the published changelog.

Tip

Reviewers do not need to copy anything into the merge commit message when merging the pull request.

[pomek]

What about an error in case of building the Premium features package? Will it be displayed, too?

[filipsobol]

What about an error in case of building the Premium features package? Will it be displayed, too?

This function builds both the core and commercial packages, so errors from both are now displayed properly.

[pomek]

If so, then R+.