add_action( 'wp_footer', 'scripts_theme' );Нужно повесить на "wp_enqueue_scripts" а за подвал отвечает аргумент $in_footer.
if (!function_exists('mysite_scripts')) {
/**
* Enqueue scripts and styles.
*/
function mysite_scripts() {
$the_theme = wp_get_theme();
if (!is_admin()) {
wp_enqueue_style('bootstrap.min', get_stylesheet_directory_uri() . '/css/bootstrap.min.css', array(), '4.0.0');
wp_enqueue_script('jquery');
wp_enqueue_script('popper.min', get_template_directory_uri() . '/js/popper.min.js', array(), '1.12.3', true);
wp_enqueue_script('bootstrap.min', get_template_directory_uri() . '/js/bootstrap.min.js', array(), '4.0.0', true);
wp_enqueue_script('custom', get_template_directory_uri() . '/js/custom.js', array(), $the_theme->get('Version'), true);
}
if (is_singular() && comments_open() && get_option('thread_comments')) {
wp_enqueue_script('comment-reply');
}
}
}
add_action('wp_enqueue_scripts', 'mysite_scripts');<?php wp_nav_menu( $args ); ?>wp_nav_menu( array(
'theme_location' => '',
'menu' => '',
'container' => 'div',
'container_class' => '',
'container_id' => '',
'menu_class' => 'menu',
'menu_id' => '',
'echo' => true,
'fallback_cb' => 'wp_page_menu',
'before' => '',
'after' => '',
'link_before' => '',
'link_after' => '',
'items_wrap' => '<ul id="%1$s" class="%2$s">%3$s</ul>',
'depth' => 0,
'walker' => '',
) );<?php wp_nav_menu( array( 'theme_location' => 'primary', 'items_wrap' => '<ul><li id="item-id">Список: </li>%3$s</ul>' ) ); ?>