fix creating alt phonenumber

src/Bundle/ChillMainBundle/Phonenumber/PhoneNumberHelperInterface.php

@@ -27,7 +27,7 @@ interface PhoneNumberHelperInterface
     /**
      * Get type (mobile, landline, ...) for phone number.
      */
-    public function getType(string $phonenumber): string;
+    public function getType(PhoneNumber $phonenumber): string;
 
     /**
      * Return true if the validation is configured and available.