Revert "Merge branch 'feature/193-statisticsview-rework' into development"

This reverts commit 24f49e17b9, reversing
changes made to dba6c218d6.

# Conflicts:
#	pubspec.yaml

lib/data/dao/statistic_group_dao.g.dart

@@ -1,29 +0,0 @@
-// GENERATED CODE - DO NOT MODIFY BY HAND
-
-part of 'statistic_group_dao.dart';
-
-// ignore_for_file: type=lint
-mixin _$StatisticGroupDaoMixin on DatabaseAccessor<AppDatabase> {
-  $StatisticTableTable get statisticTable => attachedDatabase.statisticTable;
-  $GroupTableTable get groupTable => attachedDatabase.groupTable;
-  $StatisticGroupTableTable get statisticGroupTable =>
-      attachedDatabase.statisticGroupTable;
-  StatisticGroupDaoManager get managers => StatisticGroupDaoManager(this);
-}
-
-class StatisticGroupDaoManager {
-  final _$StatisticGroupDaoMixin _db;
-  StatisticGroupDaoManager(this._db);
-  $$StatisticTableTableTableManager get statisticTable =>
-      $$StatisticTableTableTableManager(
-        _db.attachedDatabase,
-        _db.statisticTable,
-      );
-  $$GroupTableTableTableManager get groupTable =>
-      $$GroupTableTableTableManager(_db.attachedDatabase, _db.groupTable);
-  $$StatisticGroupTableTableTableManager get statisticGroupTable =>
-      $$StatisticGroupTableTableTableManager(
-        _db.attachedDatabase,
-        _db.statisticGroupTable,
-      );
-}