Preload: fix settings fields order

[ellatrix]

What?

See #66459 (comment). The fields were added to preload, but the order was not maintained.

We should somehow add e2e tests for this at some point. Perhaps check that there are no network requests before the iframe loads or something.

Why?

The order must match in order for the preload to be used.

How?

Testing Instructions

Testing Instructions for Keyboard

Check the network tab for the site editor.

Screenshots or screencast

[Mamaduka]

Good catch! Thanks, @ellatrix!

We should somehow add e2e tests for this at some point. Perhaps check that there are no network requests before the iframe loads or something.

That would be great!

[github-actions]

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[github-actions]

Flaky tests detected in cc98867.
Some tests passed with failed attempts. The failures may not be related to this commit but are still reported for visibility. See the documentation for more information.

🔍 Workflow run URL: https://github.com/WordPress/gutenberg/actions/runs/12105527071
📝 Reported issues:

• [Flaky Test] submenu click on the arrow interactions #61884 in /test/e2e/specs/editor/blocks/navigation-frontend-interactivity.spec.js

[gigitux]

Thanks for catching this! 🙇