fix Dolibarr#38509 use Austrian date format in de_AT locale

The de_AT date and time format keys carried the en_US template values
(%m/%d/%Y, %I:%M %p), so dates were shown US-style for German (Austria)
users. Austria uses the same conventions as Germany, so align the format
keys with de_DE: %d.%m.%Y and 24-hour %H:%M. Only the date/time format
values change, no key is added or removed.

Signed-off-by: Dolicraft <contact@dolicraft.com>

Author: Dolicraft

htdocs/langs/de_AT/main.lang

@@ -4,21 +4,21 @@ FONTFORPDF=helvetica
 FONTSIZEFORPDF=10
 SeparatorDecimal=,
 SeparatorThousand=.
-FormatDateShort=%m/%d/%Y
-FormatDateShortInput=%m/%d/%Y
-FormatDateShortJava=MM/dd/yyyy
-FormatDateShortJavaInput=MM/dd/yyyy
-FormatDateShortJQuery=mm/dd/yy
-FormatDateShortJQueryInput=mm/dd/yy
+FormatDateShort=%d.%m.%Y
+FormatDateShortInput=%d.%m.%Y
+FormatDateShortJava=dd.MM.yyyy
+FormatDateShortJavaInput=dd.MM.yyyy
+FormatDateShortJQuery=dd/mm/yy
+FormatDateShortJQueryInput=dd/mm/yy
 FormatHourShortJQuery=HH:MI
-FormatHourShort=%I:%M %p
+FormatHourShort=%H:%M
 FormatHourShortDuration=%H:%M
-FormatDateTextShort=%b %d, %Y
-FormatDateText=%B %d, %Y
-FormatDateHourShort=%m/%d/%Y %I:%M %p
-FormatDateHourSecShort=%m/%d/%Y %I:%M:%S %p
-FormatDateHourTextShort=%b %d, %Y, %I:%M %p
-FormatDateHourText=%B %d, %Y, %I:%M %p
+FormatDateTextShort=%d %b %Y
+FormatDateText=%d %B %Y
+FormatDateHourShort=%d.%m.%Y %H:%M
+FormatDateHourSecShort=%d.%m.%Y %H:%M:%S
+FormatDateHourTextShort=%d %b %Y %H:%M
+FormatDateHourText=%d %B %Y %H:%M
 NoError=Kein Fehler
 ErrorFailedToSendMail=Fehler beim Senden des Mails (Absender=%s, Empfänger=%s)
 ErrorDuplicateField=Dieser Wert muss einzigartig sein