Revert "Remove the upload letters permission"

app/dao/services_dao.py

@@ -50,6 +50,7 @@ from app.models import (
     NOTIFICATION_PERMANENT_FAILURE,
     SMS_TYPE,
     LETTER_TYPE,
+    UPLOAD_LETTERS,
     INTERNATIONAL_LETTERS
 )
 from app.utils import (
@@ -65,6 +66,7 @@ DEFAULT_SERVICE_PERMISSIONS = [
     EMAIL_TYPE,
     LETTER_TYPE,
     INTERNATIONAL_SMS_TYPE,
+    UPLOAD_LETTERS,
     INTERNATIONAL_LETTERS,
 ]