[Closed] Custom categories displays in editor in wrong language

function register_case_studies()
{
    $labels = array(
        'name'                => 'Case studies',
        'singular_name'       => 'Case study',
        'menu_name'           => 'Case studies',
        'all_items'           => 'Wszystkie case studies',
        'view_item'           => 'Zobacz case study',
        'add_new_item'        => 'Dodaj case study',
        'add_new'             => 'Dodaj nowe',
        'edit_item'           => 'Edytuj case study',
        'update_item'         => 'Aktualizuj',
        'search_items'        => 'Szukaj case studies',
        'not_found'           => 'Nie znaleziono',
        'not_found_in_trash'  => 'Nie znaleziono'
    );
    $args = array(
        'label' => 'case study',
        'rewrite' => array(
            'slug' => 'clients',
        ),
        'description'           => 'Case studies',
        'labels'                => $labels,
        'supports'              => array('title', 'editor'),
        'hierarchical'          => false,
        'public'                => true,
        'show_ui'               => true,
        'show_in_menu'          => true,
        'show_in_nav_menus'     => true,
        'show_in_admin_bar'     => true,
        'menu_position'         => 4,
        'menu_icon'             => 'dashicons-laptop',
        'can_export'            => true,
        'has_archive'           => false,
        'exclude_from_search'   => false,
        'publicly_queryable'    => true,
        'capability_type'       => 'post',
        'show_in_rest'          => true,
    );
    register_post_type('case-studies', $args);
}
add_action('init', 'register_case_studies', 0);


function register_custom_case_study_taxonomies()
{
    $labels = array(
        'name' => __('Branże'),
        'singular_name' => __('Branża'),
        'search_items' => __('Szukaj branż'),
        'all_items' => __('Wszystkie branże'),
        'edit_item' => __('Edytuj branżę'),
        'update_item' => __('Aktualizuj branżę'),
        'add_new_item' => __('Dodaj branżę'),
        'menu_name' => __('Branże')
    );
    $args = array(
        'public'            => false,
        'hierarchical'      => true,
        'labels'            => $labels,
        'show_ui'           => true,
        'show_admin_column' => true,
        'query_var'         => true,
        'show_in_rest'      => true,
    );
    register_taxonomy('case-study-industries', 'case-studies', $args);
}
add_action('init', 'register_custom_case_study_taxonomies', 0);