How to duplicate elements?

I want that whenever someone clicks on plus-icon a new form field should be created same as this one new form field should be below to this one. all the buttons should be duplicated as well.

const container = document.querySelector(".container");
    
    
    // Creating a SPAN element and appending it to div
    container.addEventListener("click", (e) => {
      const tgt = e.target.closest(".icons");
      if (tgt) {
        if (tgt.classList.contains("swapped")) return; // stop
        if (tgt.classList.contains("check-icon")) {
          tgt.classList.add("swapped");
          let texts = document.querySelectorAll(".text");
          let items = document.querySelectorAll(".items");
          texts.forEach((text, i) => {
            let span = document.createElement("span");
            let val = document.createTextNode(text.value ? text.value : "");
            span.appendChild(val);
            span.classList.add("text2");
            items[i].appendChild(span);
            if (text.value) text.value = ""; // setting the input value to empty once clicked onto the check button
            text.parentNode.replaceChild(span, text);
    
            let btns = document.querySelectorAll(".mainicon"); // changing icon from check to edit
            if (tgt.classList.contains("check-icon")) {
              Array.from(btns).forEach((ele) => {
                ele.classList.toggle("hidden");
                            if (ele.classList.contains("edit-icon")) {
                ele.classList.remove("swapped");
                }
    
              });
    
            }
    
          });
    
        }
        if (tgt.classList.contains("edit-icon")) {
    
          let texts = document.querySelectorAll(".text2");
          let items = document.querySelectorAll(".items");
          texts.forEach((text, i) => {
            let input = document.createElement("input");
            input.value = text.textContent;
            input.classList.add("text");
            items[i].appendChild(input);
            text.parentNode.replaceChild(input, text);
    
            let btns = document.querySelectorAll(".mainicon"); // changing icon from check to edit
            Array.from(btns).forEach((ele) => {
              ele.classList.toggle("hidden");
        if (ele.classList.contains("check-icon")) {
                ele.classList.remove("swapped");
                }
    
            });
    
          });
    
        }
    
    
      }
    
    });





<!DOCTYPE html>
    <html lang="en">
      <head>
        <title>Document</title>
        <link rel="stylesheet" href="style.css" />
        <link
          rel="stylesheet"
          href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.0.0-beta3/css/all.min.css"
          integrity="sha512-Fo3rlrZj/k7ujTnHg4CGR2D7kSs0v4LLanw2qksYuRlEzO+tcaEPQogQ0KaoGN26/zrn20ImR1DfuLWnOo7aBA=="
          crossorigin="anonymous"
          referrerpolicy="no-referrer"
        />
      </head>
      <body style="background-color: #007bff">
        <div class="mainContainer">
          <h1 class="heading">Details Collector</h1>
          <div class="container">
            <div class="items">
              <label class="label" for="Name">Name :</label> &nbsp;&nbsp;&nbsp;
              <input class="text" type="text"/>
            </div>
            <div class="items">
              <label class="label" for="State">State :</label> &nbsp;&nbsp;&nbsp;
              <input class="text" type="text"/>
            </div>
            <div class="items">
              <label class="label" for="Country">Country :</label> &nbsp;&nbsp;&nbsp;
              <input class="text" type="text"/>
            </div>
    
            <div class="check-icon icons mainicon">
              <i class="fa fa-check " aria-hidden="true"></i>
            </div>
          
          <div class="edit-icon icons hidden mainicon" >
            <i class="far fa-edit " aria-hidden="true"></i> 
          </div>
    
    
            <div class="plus-icon icons ">
              <i class="fa fa-plus" aria-hidden="true"></i>
            </div> <br>
        </div>
          </div>
        </div>
    
        <script src="app.js"></script>
      </body>
    </html>

JS Fiddle