Set the address name as company name for Sendcloud

When company name is set, the name become the attention name for Sendcloud and
the company name is the recipient name of the address.

Closes #14549

modules/stock_package_shipping_sendcloud/stock.py

@@ -156,7 +156,11 @@ class CreateShippingSendcloud(Wizard):
         email = address.contact_mechanism_get('email', usage=usage)
         street_lines = (address.street or '').splitlines()
         name = address_name(address, party)
-        company_name = party.full_name if party.full_name != name else None
+        if party.full_name != name:
+            company_name = name
+            name = party.full_name
+        else:
+            company_name = None
         parcel = {
             'name': name,
             'company_name': company_name,