将悬停下拉菜单转换为可点击的下拉菜单

$(document).ready(function() {
  var countClick = 0; 
  $( "ul.nav li.has-children" ).click(function() {
    countClick = countClick + 1;
    if (countClick %2 == 0) {
      $(this).children('.submenu').addClass('submenuActive');
    } 
    else 
    { 
      $(this).children('.submenu').removeClass('submenuActive');
    } 
  });
  $( "ul.nav li.has-children" ).mouseleave(function() {
    countClick = 0;
    $(this).children('.submenu').removeClass('submenuActive');
  });
  
});

.nav {
    position: sticky;
    left: 0;
    background-color: rgba(255,255,255,.8);
    border-radius: 0px;
    border: none;
    width: 100%;
    padding: 10px 0;
    flex-direction: row;
    display: flex;
    align-items: center;
    justify-content: space-evenly;
}

.item {
    color: black;
    font-weight: bold;
    text-transform: capitalize;
    width: 25%;
    text-align: center;
}

.submenu {
    display: none;
    flex-wrap: wrap;
    align-items: center;
    align-text: center;
    position: absolute;
    padding-top: 107px;
    padding: 10px;
    font-size: small;
    left: 0;
    right: 0;
    text-transform: capitalize;
    z-index: 1;
    background-color: #2F4F4F;
    color: white;
    justify-content: left;
}

.submenu li {
    margin-left: 6%;
    width: 19%;
    padding: 5px;
}

.submenuActive {
    display: flex;
    align-items: center;
    flex-direction: row; 
    justify-content: left;
    flex-wrap: wrap;
    flex: 1 1 calc(25% - 80px);
    color: black;
    background-color: rgba(255,255,255,.8);
}

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<ul class="nav">
        <li class="item"> 
            <a href="index.html">
                <img src="../Images/Navigation/Intak Nav Mark -01.png" alt="Home"/>
            </a>
        </li>
        <li class="item has-children"><a href="Printing.html">Printing</a>

        </li>
        <li class="item has-children" style="color:#4D4D4D;">Graphic Design

        </li>
        <li class="item has-children">Chinese Calendars
            <ul class="submenu">
                <li><a href="Calendars/Cane Wallscroll Calendars.html">Cane Wallscroll Calendars</a></li>
                <li><a href="Calendars/Wall Calendars.html">Wall Calendars</a></li>
                <li><a href="Calendars/Mini Calendars.html">Mini Calendars</a></li>
                <li><a href="Calendars/Desk Calendars.html">Desk Calendars</a></li>
                <li><a href="Calendars/Special Desk Calendars.html">Special Desk Calendars</a></li>
                <li><a href="Calendars/Lucky Money Envelopes.html">Lucky Money Envelopes</a></li>
                <li><a href="Calendars/More.html">More Calendars</a></li>
            </ul>
        </li>
        <li class="item"><a href="Contact Us.html">Contact Us</a></li>
    </ul>