重複するコードはmapを使用します

  const descriptionList = [
    {
      id: 0,
      title: 'Product Details',
    },
    {
      id: 1,
      title: 'Shipping & Delivery',
    },
    {
      id: 2,
      title: 'Reviews',
    },
  ];



      <ul ref={detailRef} className="descriptions row">
        {descriptionList.map(({ id, title }) => {
          return (   
              <li key={id} className={id} onClick={handleCheckedList}>
                <i
                  className={
                    checkList(`${id}`) ? `fas fa-minus` : `fas fa-plus`
                  }
                />
                &nbsp; {title}
              </li>
          );
        })}
      </ul>