Fix backupsite view when schedule is never

dashboard/src/models/BackupSitesModel.js

@@ -220,7 +220,10 @@ const cronHours = Array.from({ length: 24 }).map(function (v, i) { return { id:
 
 function prettyBackupSchedule(pattern) {
   if (!pattern) return '';
+
   const tmp = pattern.split(' ');
+  if (tmp.length === 1) return pattern; // case for 'never'
+
   const hours = tmp[2].split(','), days = tmp[5].split(',');
   let prettyDay;
   if (days.length === 7 || days[0] === '*') {