basic csv loader, transaction list & half done stats page

lib/repositories/account/models/transaction.dart

@@ -0,0 +1,33 @@
+class Transaction {
+  DateTime date;
+  String category;
+  String description;
+  String account;
+  double value;
+
+  Transaction({
+    required this.date,
+    required this.category,
+    required this.description,
+    required this.account,
+    required this.value
+  });
+
+  factory Transaction.fromJson(Map<String, dynamic> json) {
+    return Transaction(
+      date: DateTime.parse(json['date']),
+      category: json['category'],
+      description: json['description'],
+      account: json['account'],
+      value: double.parse(json['value']),
+    );
+  }
+
+  Map<String, String> toJson() => {
+    'date': date.toIso8601String(),
+    'category': category,
+    'description': description,
+    'account': account,
+    'value': value.toString(),
+  };
+}