Query Pagination Previous: Add border and spacing support

[karthick-murugan]

What?

Add border and spacing block support to the Query Pagination Previous ( Previous Page ) block.

Part of #43247
Part of #43243

Why?

Query Pagination Previous ( Previous Page ) block is missing border and spacing support.

How?

Adds the border and spacing block support in block.json

Testing Instructions

• Go to Appearance > Editor > Styles > Edit Styles > Blocks.
• Ensure the Query Pagination Previous (Previous Page) block's border and spacing is configurable via Global Styles.
• Confirm Global Styles are applied correctly in both the editor and frontend.
• Edit a template or page and add a Query Loop block.
• Select a variation (e.g., Title & Date) and adjust pagination to display the "Previous Link."
• Select the Previous Page block and verify border, radius and spacing settings are available.
• Check that block styles take precedence over Global Styles.
• Ensure borders and spacing display correctly in both the editor and frontend.

Testing Instructions for Keyboard

None.

Screenshots or screencast

In Backend:

In Front End:

[github-actions]

The following accounts have interacted with this PR and/or linked issues. I will continue to update these lists as activity occurs. You can also manually ask me to refresh this list by adding the props-bot label.

If you're merging code through a pull request on GitHub, copy and paste the following into the bottom of the merge commit message.

Co-authored-by: karthick-murugan <[email protected]>

To understand the WordPress project's expectations around crediting contributors, please review the Contributor Attribution page in the Core Handbook.

[github-actions]

👋 Thanks for your first Pull Request and for helping build the future of Gutenberg and WordPress, @karthick-murugan! In case you missed it, we'd love to have you join us in our Slack community.

If you want to learn more about WordPress development in general, check out the Core Handbook full of helpful information.