golden hour

/var/www/html/wp-includes/blocks

File/Folder	Size	Actions
archives	-
archives.php	2.7 KB
audio	-
block	-
block.php	1.47 KB
button	-
buttons	-
calendar	-
calendar.php	1.53 KB
categories	-
categories.php	2.59 KB
code	-
column	-
columns	-
cover	-
embed	-
file	-
file.php	897 B
freeform	-
gallery	-
group	-
heading	-
html	-
image	-
index.php	2.54 KB
latest-comments	-
latest-comments.php	4.88 KB
latest-posts	-
latest-posts.php	6.96 KB
legacy-widget	-
legacy-widget.php	3.73 KB
list	-
loginout	-
loginout.php	1.35 KB
media-text	-
missing	-
more	-
nextpage	-
page-list	-
page-list.php	7.09 KB
paragraph	-
post-content	-
post-content.php	1.84 KB
post-date	-
post-date.php	1.5 KB
post-excerpt	-
post-excerpt.php	2.38 KB
post-featured-image	-
post-featured-image.php	1.31 KB
post-template	-
post-template.php	2.66 KB
post-terms	-
post-terms.php	1.63 KB
post-title	-
post-title.php	1.57 KB
preformatted	-
pullquote	-
query	-
query-pagination	-
query-pagination-next	-
query-pagination-next.php	2.45 KB
query-pagination-numbers	-
query-pagination-numbers.php	2.72 KB
query-pagination-previous	-
query-pagination-previous.php	1.99 KB
query-pagination.php	359 B
query-title	-
query-title.php	1.35 KB
query.php	304 B
quote	-
rss	-
rss.php	3.21 KB
search	-
search.php	6.57 KB
separator	-
shortcode	-
shortcode.php	697 B
site-logo	-
site-logo.php	4.84 KB
site-tagline	-
site-tagline.php	994 B
site-title	-
site-title.php	1.21 KB
social-link	-
social-link.php	57.92 KB
social-links	-
spacer	-
table	-
tag-cloud	-
tag-cloud.php	1.24 KB
text-columns	-
verse	-
video	-

Edit: categories.php

<?php
/**
 * Server-side rendering of the `core/categories` block.
 *
 * @package WordPress
 */

/**
 * Renders the `core/categories` block on server.
 *
 * @param array $attributes The block attributes.
 *
 * @return string Returns the categories list/dropdown markup.
 */
function render_block_core_categories( $attributes ) {
	static $block_id = 0;
	$block_id++;

$args = array(
		'echo'         => false,
		'hierarchical' => ! empty( $attributes['showHierarchy'] ),
		'orderby'      => 'name',
		'show_count'   => ! empty( $attributes['showPostCounts'] ),
		'title_li'     => '',
	);

if ( ! empty( $attributes['displayAsDropdown'] ) ) {
		$id                       = 'wp-block-categories-' . $block_id;
		$args['id']               = $id;
		$args['show_option_none'] = __( 'Select Category' );
		$wrapper_markup           = '<div %1$s><label class="screen-reader-text" for="' . $id . '">' . __( 'Categories' ) . '</label>%2$s</div>';
		$items_markup             = wp_dropdown_categories( $args );
		$type                     = 'dropdown';

if ( ! is_admin() ) {
			// Inject the dropdown script immediately after the select dropdown.
			$items_markup = preg_replace(
				'#(?<=</select>)#',
				build_dropdown_script_block_core_categories( $id ),
				$items_markup,
				1
			);
		}
	} else {
		$wrapper_markup = '<ul %1$s>%2$s</ul>';
		$items_markup   = wp_list_categories( $args );
		$type           = 'list';
	}

$wrapper_attributes = get_block_wrapper_attributes( array( 'class' => "wp-block-categories-{$type}" ) );

return sprintf(
		$wrapper_markup,
		$wrapper_attributes,
		$items_markup
	);
}

/**
 * Generates the inline script for a categories dropdown field.
 *
 * @param string $dropdown_id ID of the dropdown field.
 *
 * @return string Returns the dropdown onChange redirection script.
 */
function build_dropdown_script_block_core_categories( $dropdown_id ) {
	ob_start();
	?>
	<script type='text/javascript'>
	/* <![CDATA[ */
	( function() {
		var dropdown = document.getElementById( '<?php echo esc_js( $dropdown_id ); ?>' );
		function onCatChange() {
			if ( dropdown.options[ dropdown.selectedIndex ].value > 0 ) {
				location.href = "<?php echo home_url(); ?>/?cat=" + dropdown.options[ dropdown.selectedIndex ].value;
			}
		}
		dropdown.onchange = onCatChange;
	})();
	/* ]]> */
	</script>
	<?php
	return ob_get_clean();
}

/**
 * Registers the `core/categories` block on server.
 */
function register_block_core_categories() {
	register_block_type_from_metadata(
		__DIR__ . '/categories',
		array(
			'render_callback' => 'render_block_core_categories',
		)
	);
}
add_action( 'init', 'register_block_core_categories' );