update date-fns

Author: tomaskikutis

app-typescript/components/DatePicker.tsx

@@ -1,6 +1,6 @@
 import * as React from 'react';
-import addDays from 'date-fns/addDays';
-import format from 'date-fns/format';
+import {addDays} from 'date-fns';
+import {format} from 'date-fns';
 import moment from 'moment';
 import {Calendar, LocaleSettings, CalendarProps} from '@superdesk/primereact/calendar';
 import {throttle} from 'lodash';