migrated holidays module to MarianumConnect API, replaced local Holiday model.

lib/api/marianumconnect/queries/timetable_get_holidays/timetable_get_holidays_response.dart

@@ -1,36 +1,12 @@
 import 'package:json_annotation/json_annotation.dart';
 
 import '../../../api_response.dart';
+import '../../models/mc_holiday.dart';
+
+export '../../models/mc_holiday.dart';
 
 part 'timetable_get_holidays_response.g.dart';
 
-@JsonSerializable(explicitToJson: true)
-class McHoliday {
-  final String shortName;
-  final String longName;
-
-  @JsonKey(fromJson: _dateFromJson, toJson: _dateToJson)
-  final DateTime startDate;
-
-  @JsonKey(fromJson: _dateFromJson, toJson: _dateToJson)
-  final DateTime endDate;
-
-  McHoliday({
-    required this.shortName,
-    required this.longName,
-    required this.startDate,
-    required this.endDate,
-  });
-
-  factory McHoliday.fromJson(Map<String, dynamic> json) =>
-      _$McHolidayFromJson(json);
-  Map<String, dynamic> toJson() => _$McHolidayToJson(this);
-
-  static DateTime _dateFromJson(String raw) => DateTime.parse(raw);
-  static String _dateToJson(DateTime d) =>
-      '${d.year.toString().padLeft(4, '0')}-${d.month.toString().padLeft(2, '0')}-${d.day.toString().padLeft(2, '0')}';
-}
-
 @JsonSerializable(explicitToJson: true)
 class TimetableGetHolidaysResponse extends ApiResponse {
   final List<McHoliday> result;

lib/api/marianumconnect/queries/timetable_get_holidays/timetable_get_holidays_response.g.dart

@@ -6,20 +6,6 @@ part of 'timetable_get_holidays_response.dart';
 // JsonSerializableGenerator
 // **************************************************************************
 
-McHoliday _$McHolidayFromJson(Map<String, dynamic> json) => McHoliday(
-  shortName: json['shortName'] as String,
-  longName: json['longName'] as String,
-  startDate: McHoliday._dateFromJson(json['startDate'] as String),
-  endDate: McHoliday._dateFromJson(json['endDate'] as String),
-);
-
-Map<String, dynamic> _$McHolidayToJson(McHoliday instance) => <String, dynamic>{
-  'shortName': instance.shortName,
-  'longName': instance.longName,
-  'startDate': McHoliday._dateToJson(instance.startDate),
-  'endDate': McHoliday._dateToJson(instance.endDate),
-};
-
 TimetableGetHolidaysResponse _$TimetableGetHolidaysResponseFromJson(
   Map<String, dynamic> json,
 ) =>