fix: mark the required fields instead of a message about the address

Removes "Complete o endereço de entrega para ir ao pagamento." The required
fields (CNPJ, WhatsApp, e-mail, and the delivery address except the
complement) carry a red asterisk, and aria-required for screen readers.

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

web/site-v2.css

@@ -372,6 +372,7 @@ html:is([data-rota="pagamento"],[data-rota="pix"]) .pagGrid{display:grid;grid-te
 .envioArq .ic{width:19px;height:19px;margin:-2px 6px 0 0}
 .qi .c .ic{width:15px;height:15px;stroke-width:3}
 .passos a span .ic{width:17px;height:17px;stroke-width:3}
+.obr{color:#B42318;font-weight:700}
 .envioArq{font-size:15px;color:var(--texto2);margin-top:14px;line-height:1.5}
 .envioArq.ok{color:var(--verde)}
 .envioArq.erro{color:#B42318}
@@ -381,8 +382,6 @@ html:is([data-rota="pagamento"],[data-rota="pix"]) .pagGrid{display:grid;grid-te
 .cartEnvio{font-size:15px;font-weight:700;color:var(--laranja-escuro);margin-left:6px}
 .cartEnvio:empty{display:none}
 .envioArq:empty{display:none}
-.dicaEnd{font-size:15px;color:var(--texto2);margin-top:12px}
-.dicaEnd:empty{display:none}
 .pagCab{display:flex;align-items:baseline;justify-content:space-between;gap:16px;margin-bottom:20px}
 .pagCab h3{font-size:26px;font-weight:800;letter-spacing:-.02em}
 .pagVolta{font-size:16px;color:var(--texto2)}