fix(django): restore old API behevior

With a REST Framework update, the default behavior changed to
automatically trimming whitespace.

api/desecapi/serializers.py

@@ -3,7 +3,7 @@ from desecapi.models import Domain, Donation
 
 class DomainSerializer(serializers.ModelSerializer):
     owner = serializers.ReadOnlyField(source='owner.email')
-    name = serializers.RegexField(regex=r'^[A-Za-z0-9\.\-]+$')
+    name = serializers.RegexField(regex=r'^[A-Za-z0-9\.\-]+$',trim_whitespace=False)
 
     class Meta:
         model = Domain