Thank you very much Tom, your help is amazing! Now the menu is animated!!
I added a little css to hide the old close button, I’ll attach it here in case can help anyone:
.icon-menu-bars{
display:none;
}
button.menu-toggle,
button.menu-toggle:hover, button.menu-toggle:visited, button.menu-toggle:active, button.menu-toggle:link{
background-color:transparent !important;
}
.pro-close svg{
display:none;
}
Thanks again for your help!!!