golden hour

/var/www/html/wp-content/plugins/duplicate-post

File/Folder	Size	Actions
compat	-
css	-
duplicate-post-admin.php	26.66 KB
duplicate-post-common.php	2.97 KB
duplicate-post-options.php	594 B
duplicate-post.php	3.24 KB
duplicate_post_yoast_icon-125x125.png	18.35 KB
gpl-2.0.txt	17.67 KB
js	-
readme.txt	14.23 KB
src	-
vendor	-

Edit: duplicate-post.php

<?php
/**
 * Plugin Name: Yoast Duplicate Post
 * Plugin URI: https://yoast.com/wordpress/plugins/duplicate-post/
 * Description: The go-to tool for cloning posts and pages, including the powerful Rewrite & Republish feature.
 * Version: 4.1.2
 * Author: Enrico Battocchi & Team Yoast
 * Author URI: https://yoast.com
 * Text Domain: duplicate-post
 *
 * @package Duplicate Post
 * @since 0.1
 *
 * Copyright 2020 Yoast BV (email : info@yoast.com)
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
 */

use Yoast\WP\Duplicate_Post\Duplicate_Post;

if ( ! defined( 'ABSPATH' ) ) {
	exit();
}

if ( ! defined( 'DUPLICATE_POST_FILE' ) ) {
	define( 'DUPLICATE_POST_FILE', __FILE__ );
}

if ( ! defined( 'DUPLICATE_POST_PATH' ) ) {
	define( 'DUPLICATE_POST_PATH', plugin_dir_path( __FILE__ ) );
}

define( 'DUPLICATE_POST_CURRENT_VERSION', '4.1.2' );

$duplicate_post_autoload_file = __DIR__ . '/vendor/autoload.php';

if ( is_readable( $duplicate_post_autoload_file ) ) {
	require $duplicate_post_autoload_file;

// Initialize the main autoloaded class.
	add_action( 'plugins_loaded', '__duplicate_post_main' );
}

/**
 * Loads the Duplicate Post main class.
 *
 * @phpcs:disable PHPCompatibility.FunctionNameRestrictions.ReservedFunctionNames.FunctionDoubleUnderscore,WordPress.NamingConventions.ValidFunctionName.FunctionDoubleUnderscore,WordPress.NamingConventions.PrefixAllGlobals.NonPrefixedFunctionFound -- Function name change would be BC-break.
 */
function __duplicate_post_main() {
	new Duplicate_Post();
}
// phpcs:enable

/**
 * Initialises the internationalisation domain.
 */
function duplicate_post_load_plugin_textdomain() {
	load_plugin_textdomain( 'duplicate-post', false, basename( dirname( __FILE__ ) ) . '/languages/' );
}
add_action( 'plugins_loaded', 'duplicate_post_load_plugin_textdomain' );

add_filter( 'plugin_action_links_' . plugin_basename( __FILE__ ), 'duplicate_post_plugin_actions', 10 );

/**
 * Adds 'Settings' link to plugin entry in the Plugins list.
 *
 * @ignore
 * @see 'plugin_action_links_$plugin_file'
 *
 * @param array $actions An array of plugin action links.
 * @return array
 */
function duplicate_post_plugin_actions( $actions ) {
	$settings_action = array(
		'settings' => sprintf(
			'<a href="%1$s" %2$s>%3$s</a>',
			menu_page_url( 'duplicatepost', false ),
			'aria-label="' . __( 'Settings for Duplicate Post', 'duplicate-post' ) . '"',
			esc_html__( 'Settings', 'default' )
		),
	);

$actions = $settings_action + $actions;
	return $actions;
}

require_once dirname( __FILE__ ) . '/duplicate-post-common.php';

if ( is_admin() ) {
	include_once dirname( __FILE__ ) . '/duplicate-post-admin.php';
}