[FIX] l10n_es_edi_facturae: handle traceback while send an invoice to partner

When the user attempts to send an invoice to a partner whose country code is not
set.

Steps to produce:
- Install sale_management,l10n_es_edi_facturae
- Open invoicing module > Create a new invoice
- Select a customer who does not have set country_id.
- Click on Add a line > Select any product
- Click on Confirm > Click on Send & Print > Click on save
- Click on Send & Print
- Error will be produced

This commit addresses a `KeyError False` while the user attempts to send an
invoice to a partner without a set country code. The function
`_l10n_es_edi_facturae_export_facturae` uses the partner's country code but
the partner doesn't have a set country code. As a result, a `KeyError` traceback
is generated.

Sentry-4330095746

closes odoo/odoo#130382

X-original-commit: 421d370ed30ff92a85bf7db0f4d6f1f3431b2b34
Signed-off-by: John Laterre (jol) <jol@odoo.com>

addons/l10n_es_edi_facturae/i18n/l10n_es_edi_facturae.pot

@@ -551,6 +551,13 @@ msgstr ""
 msgid "The date on which the certificate starts to be valid"
 msgstr ""
 
+#. module: l10n_es_edi_facturae
+#. odoo-python
+#: code:addons/l10n_es_edi_facturae/models/account_move.py:0
+#, python-format
+msgid "The partner needs a set country"
+msgstr ""
+
 #. module: l10n_es_edi_facturae
 #. odoo-python
 #: code:addons/l10n_es_edi_facturae/models/account_move.py:0

addons/l10n_es_edi_facturae/models/account_move.py

@@ -253,6 +253,8 @@ class AccountMove(models.Model):
             raise UserError(_('The company needs a set tax identification number or VAT number'))
         if not partner.vat:
             raise UserError(_('The partner needs a set tax identification number or VAT number'))
+        if not partner.country_id:
+            raise UserError(_("The partner needs a set country"))
         if self.move_type == "entry":
             return False