update locales from crowdin

config/locales/de.yml

@@ -11,7 +11,7 @@ de:
         start_time_hour: "Beginn"
     errors:
       messages:
-        invalid_time_format: 'ist keine gültige Zeit. Erforderliches Format: HH: mm'
+        invalid_time_format: 'ist keine gültige Zeit. Erforderliches Format: 15:12'
     models:
       meeting_agenda: "Agenda"
       meeting_minutes: "Protokoll"
@@ -37,7 +37,7 @@ de:
   label_meeting_date_time: "Datum/Uhrzeit"
   label_meeting_diff: "Differenz"
   label_notify: "Zur Einsicht verschicken"
-  label_icalendar: "iCalendar-Eintrag verschicken"
+  label_icalendar: "ICalendar senden"
   label_version: "Version"
   label_time_zone: "Zeitzone"
   label_start_date: "Beginn"