fix(members/waitinglist): add translations for age info

jdav_web/members/locale/de/LC_MESSAGES/django.po

@@ -8,7 +8,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: PACKAGE VERSION\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2025-05-03 18:06+0200\n"
+"POT-Creation-Date: 2025-07-25 18:44+0200\n"
 "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
 "Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
 "Language-Team: LANGUAGE <LL@li.org>\n"
@@ -599,6 +599,15 @@ msgstr "Gruppe"
 msgid "groups"
 msgstr "Gruppen"
 
+#: members/models.py
+#, python-format
+msgid "years %(from)s to %(to)s"
+msgstr "Jahrgang %(from)s bis %(to)s"
+
+#: members/models.py
+msgid "no information available"
+msgstr "keine Angabe"
+
 #: members/models.py
 msgid "prename"
 msgstr "Vorname"

jdav_web/members/models.py

@@ -125,7 +125,7 @@ class Group(models.Model):
     
     def get_age_info(self):
         if self.has_age_info():
-            return f"Jahrgang {self.year_from} bis {self.year_to}"
+            return _("years %(from)s to %(to)s") % {'from':self.year_from, 'to':self.year_to}
         else:
             return ""
 
@@ -143,7 +143,7 @@ class Group(models.Model):
         if self.has_age_info():
             group_age = self.get_age_info()
         else:
-            group_age = "keine Angabe"
+            group_age = _("no information available")
         
         return settings.INVITE_TEXT.format(group_time=group_time,
                                            group_name=self.name,