Hello,

Add the code below in Theme Settings -> Custom CSS -> Global Custom CSS area.

body .wd-product.wd-hover-fw-button .wd-add-btn .add-to-cart-loop span {
    display: flex !important;
    font-size: 0;
}

body .wd-product.wd-hover-fw-button .wd-add-btn .add-to-cart-loop span:after {
    
    content: "\f126";
    font-family: "woodmart-font";
    font-weight: 400;
    
    font-size: 20px;
}

https://monosnap.com/file/uymWSL97DJoL6oVRDOzvdJeY52RphI

Kind Regards