feat: icons on the buttons, delivery, payment, status and Kanban

- Buttons: add to cart (bag with plus), go to payment (lock), remove from
  the cart (bin).
- Delivery: a pin for pickup in Franca, a truck for home delivery.
- Payment: card and QR code on the methods, copy on the PIX code, a clock on
  its countdown, a check on the confirmation.
- Status: a check when the files are sent, check, alert, redo and cross in
  the quality list instead of Unicode symbols, and a check on finished steps.
- Kanban: a truck or pin for where an order goes, a speech bubble on the
  WhatsApp link, a download arrow on the file buttons.

All Lucide shapes drawn inline, as in the header.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

web/site-modes.js

@@ -37,7 +37,7 @@ function pintaModo(){
   $('larguraFolhaPronta').textContent=String(c.larg).replace('.',',');
   $('foco2').classList.remove('sofila');            // a caixa de requisitos vale nos 4 modos
   $('montcabTit').textContent = ehFolha(m) ? 'Sua folha' : 'Montagem ao vivo';
-  $('qOk').textContent = ehFolha(m) ? 'Adicionar ao carrinho' : 'Ver a folha montada';
+  $('qOk').innerHTML = ehFolha(m) ? icone('adicionar')+'<span>Adicionar ao carrinho</span>' : 'Ver a folha montada';
   pintaTipoEnvio();
 }
 // O par folha montada / artes separadas fica visível e com preço nos dois lados,