feat(descriptor-menu): handle error empty input

modules/invoiceOut/front/descriptor-menu/index.html

@@ -111,8 +111,7 @@
         <span translate>Are you sure you want to send it?</span>
         <vn-textfield vn-one
             label="Email"
-            ng-model="sendPdfConfirmation.data.email"
-            required>
+            ng-model="sendPdfConfirmation.data.email">
         </vn-textfield>
     </tpl-body>
     <tpl-buttons>
@@ -130,8 +129,7 @@
         <span translate>Are you sure you want to send it?</span>
         <vn-textfield vn-one
             label="Email"
-            ng-model="sendCsvConfirmation.data.email"
-            required>
+            ng-model="sendCsvConfirmation.data.email">
         </vn-textfield>
     </tpl-body>
     <tpl-buttons>

modules/invoiceOut/front/descriptor-menu/index.js

@@ -80,6 +80,9 @@ class Controller extends Section {
     }
 
     sendPdfInvoice($data) {
+        if (!$data.email)
+            return this.vnApp.showError(this.$t(`The email can't be empty`));
+
         return this.vnEmail.send('invoice', {
             recipientId: this.invoiceOut.client.id,
             recipient: $data.email,
@@ -88,6 +91,9 @@ class Controller extends Section {
     }
 
     sendCsvInvoice($data) {
+        if (!$data.email)
+            return this.vnApp.showError(this.$t(`The email can't be empty`));
+
         return this.vnEmail.sendCsv('invoice', {
             recipientId: this.invoiceOut.client.id,
             recipient: $data.email,

modules/invoiceOut/front/descriptor-menu/locale/es.yml

@@ -18,3 +18,4 @@ InvoiceOut booked: Factura asentada
 Are you sure you want to book this invoice?: Estas seguro de querer asentar esta factura? 
 Regenerate PDF invoice: Regenerar PDF factura
 The invoice PDF document has been regenerated: El documento PDF de la factura ha sido regenerado
+The email can't be empty: El correo no puede estar vacío