Use gettext_lazy for preference section verbose names

(cherry picked from commit 53e2eabd)

CHANGELOG.rst

@@ -6,6 +6,15 @@ All notable changes to this project will be documented in this file.
 The format is based on `Keep a Changelog`_,
 and this project adheres to `Semantic Versioning`_.
 
+Unreleased
+----------
+
+Fixed
+~~~~~
+
+* Preference section verbose names were displayed in server language and not
+  user language (fixed by using gettext_lazy).
+
 `2.0b0`_ - 2021-05-21
 ---------------------
 

aleksis/apps/untis/preferences.py

-from django.utils.translation import gettext as _
+from django.utils.translation import gettext_lazy as _
 
 from dynamic_preferences.preferences import Section
 from dynamic_preferences.types import BooleanPreference