Global Styles: enqueue styles later so theme css can load first

[creativecoder]

Description

Deenqueues and deregisters the 'global-styles' asset enqueued by Core, and reenqueues it on a later priority.

This allows theme css enqueued on the default priority to load first, so that a user's Global Style settings take precedence over theme css (particularly in the case of equal css selector weight).

Fixes #34141

Example of conflicts with themes: Automattic/themes#4435

How has this been tested?

Ensure that Global styles is loaded after the theme css on the page.

Screenshots

Types of changes

Bug fix (non-breaking change which fixes an issue)

Checklist:

• My code is tested.
• My code follows the WordPress code style.
• My code follows the accessibility standards.
• I've tested my changes with keyboard and screen readers.
• My code has proper inline documentation.
• I've included developer documentation if appropriate.
• I've updated all React Native files affected by any refactorings/renamings in this PR (please manually search all *.native.js files for terms that need renaming or removal).

[jeyip]

Testing

Requirements

• With the blockbase theme, the global-styles-inline-css stylesheet is loaded after theme stylesheets
• With the mayland blocks theme, the global-styles-inline-css stylesheet is loaded after theme stylesheets

Browsers

• Edge
• Firefox
• Safari
• Chrome

This makes sense to me 👍 Waiting for folks with more global styles experience to chime in before +1

[oandregal]

The current behavior is how it's expected to work, so going to ask for more info on the issue before we go further with this.

[creativecoder]

I'll close this for now, since the discussion in #34141 looks like it's leading to more nuanced solution.