2024 Theme: Reduce spacing above home page LP cards

Fixes #2626

wp-content/themes/pub/wporg-learn-2024/patterns/front-page-content.php

@@ -15,7 +15,7 @@
 <p class="has-charcoal-4-color has-text-color has-link-color" style="margin-top:0"><?php esc_html_e( 'Learning Pathways help you build your skills progressively so you can go from beginner to advanced at your own pace.', 'wporg-learn' ); ?></p>
 <!-- /wp:paragraph -->
 
-<!-- wp:wporg-learn/learning-pathway-cards {"isMini":true,"style":{"spacing":{"margin":{"top":"var:preset|spacing|40"}}}} /-->
+<!-- wp:wporg-learn/learning-pathway-cards {"isMini":true,"style":{"spacing":{"margin":{"top":"40px"}}}} /-->
 
 <!-- wp:heading {"style":{"spacing":{"margin":{"top":"var:preset|spacing|60","bottom":"var:preset|spacing|10"}}}} -->
 <h2 class="wp-block-heading" style="margin-top:var(--wp--preset--spacing--60);margin-bottom:var(--wp--preset--spacing--10)"><?php esc_html_e( 'Featured Courses', 'wporg-learn' ); ?></h2>