Add nationality and departure_city fields to GrantAdminForm and GrantAdmin

Author: estyxx

backend/grants/admin.py

@@ -375,7 +375,9 @@ class Meta:
             "needs_funds_for_travel",
             "why",
             "notes",
+            "nationality",
             "departure_country",
+            "departure_city",
             "country_type",
             "applicant_reply_sent_at",
             "applicant_reply_deadline",
@@ -514,7 +516,9 @@ class GrantAdmin(ExportMixin, ConferencePermissionMixin, admin.ModelAdmin):
                     "needs_funds_for_travel",
                     "need_visa",
                     "need_accommodation",
+                    "nationality",
                     "departure_country",
+                    "departure_city",
                     "why",
                     "python_usage",
                     "been_to_other_events",