Fix #1377 (#1378)

Author: fsbraun

filer/models/foldermodels.py

@@ -6,7 +6,7 @@
 from django.urls import reverse
 from django.utils.functional import cached_property
 from django.utils.html import format_html, format_html_join
-from django.utils.translation import gettext as _
+from django.utils.translation import gettext_lazy as _
 
 from .. import settings as filer_settings
 from . import mixins