prompt for lunch only until expected lunch time

LoadingBar.java

@@ -78,7 +78,9 @@ public class LoadingBar {
       var br = new BufferedReader(new InputStreamReader(System.in, StandardCharsets.UTF_8));
       print("Ankunftszeit: ");
       var startTime = LocalTime.parse(br.readLine(), TIME_FORMATTER).truncatedTo(ChronoUnit.MINUTES);
-      handleMittagspause(br, startTime);
+      if (startTime.until(LocalTime.now(), ChronoUnit.MINUTES) < DEFAULT_NUMBER_WORK_MINS_BEFORE_LUNCH) {
+         handleMittagspause(br, startTime);
+      }
       handleZapfenstreich(br, startTime);
    }