Cw 602 nano bad rep (#1356)

* add support for paths in node settings

* update translations and fixes

* fix node path

* add rep warning flag

* update translations

* code cleanup [skip ci]

* add additional node options

* add migration

* update transaction history rpc to be under the limit

* review fixes [skip ci]

* [skip ci] updates

* move n2_node.dart

* minor code improvements

* more minor code cleanup

lib/view_model/dashboard/dashboard_view_model.dart

@@ -11,6 +11,7 @@ import 'package:cake_wallet/entities/service_status.dart';
 import 'package:cake_wallet/exchange/exchange_provider_description.dart';
 import 'package:cake_wallet/generated/i18n.dart';
 import 'package:cake_wallet/monero/monero.dart';
+import 'package:cake_wallet/nano/nano.dart';
 import 'package:cake_wallet/store/anonpay/anonpay_transactions_store.dart';
 import 'package:cake_wallet/store/app_store.dart';
 import 'package:cake_wallet/store/dashboard/orders_store.dart';
@@ -370,6 +371,18 @@ abstract class DashboardViewModelBase with Store {
   @computed
   bool get hasPowNodes => wallet.type == WalletType.nano || wallet.type == WalletType.banano;
 
+  bool get showRepWarning {
+    if (wallet.type != WalletType.nano) {
+      return false;
+    }
+
+    if (!settingsStore.shouldShowRepWarning) {
+      return false;
+    }
+
+    return !nano!.isRepOk(wallet);
+  }
+
   Future<void> reconnect() async {
     final node = appStore.settingsStore.getCurrentNode(wallet.type);
     await wallet.connectToNode(node: node);