fix(pos/invoicing): fix unclosed template literal in invoicing.js and bump cache version

pos/static/js/invoicing.js

@@ -340,6 +340,7 @@ const Invoicing = (() => {
                             <a class="btn btn--ghost btn--sm" href="${API}/facturapi/download/${item.id}/pdf" target="_blank">Descargar PDF</a>
                         </div>
                     ` : ''}
+                `;
             }
 
             // Wire the cancel button inside modal footer

pos/templates/invoicing.html

@@ -1081,7 +1081,7 @@
   <script src="/pos/static/js/splash-loader.js?v=1" defer></script>
   <script src="/pos/static/js/pos-utils.js?v=2" defer></script>
   <script src="/pos/static/js/sidebar.js" defer></script>
-  <script src="/pos/static/js/invoicing.js?v=2" defer></script>
+  <script src="/pos/static/js/invoicing.js?v=3" defer></script>
   <script src="/pos/static/js/sync-engine.js" defer></script>
   <script>if('serviceWorker' in navigator){navigator.serviceWorker.register('/pos/sw.js',{scope:'/pos/'});}</script>
   <script src="/pos/static/js/pwa-install.js" defer></script>