Import datetime extension

Author: rolandgeider

lib/widgets/weight/forms.dart

@@ -21,8 +21,8 @@ import 'package:font_awesome_flutter/font_awesome_flutter.dart';
 import 'package:intl/intl.dart';
 import 'package:provider/provider.dart';
 import 'package:wger/helpers/consts.dart';
+import 'package:wger/helpers/date.dart';
 import 'package:wger/helpers/json.dart';
-import 'package:wger/helpers/misc.dart';
 import 'package:wger/l10n/generated/app_localizations.dart';
 import 'package:wger/models/body_weight/weight_entry.dart';
 import 'package:wger/providers/body_weight.dart';