Mweb fixes (#1972)

* quick fix [still investigating]

* cleaner quick fix

* cleaner quick fix

* log fix

* save to downloads would require an additional permission

* change address handling updates [skip ci]

* should change address not updating

* change address handling updates

* remove unnecessary code + don't reset change address index to 0

lib/view_model/settings/mweb_settings_view_model.dart

@@ -3,6 +3,8 @@ import 'dart:io';
 import 'package:cake_wallet/bitcoin/bitcoin.dart';
 import 'package:cake_wallet/store/settings_store.dart';
 import 'package:cake_wallet/utils/exception_handler.dart';
+import 'package:cw_core/root_dir.dart';
+import 'package:cw_core/utils/print_verbose.dart';
 import 'package:cw_core/wallet_base.dart';
 import 'package:flutter/widgets.dart';
 import 'package:mobx/mobx.dart';
@@ -47,25 +49,6 @@ abstract class MwebSettingsViewModelBase with Store {
     _settingsStore.mwebAlwaysScan = value;
   }
 
-  Future<bool> saveLogsLocally(String filePath) async {
-    try {
-      final appSupportPath = (await getApplicationSupportDirectory()).path;
-      final logsFile = File("$appSupportPath/logs/debug.log");
-      if (!logsFile.existsSync()) {
-        throw Exception('Logs file does not exist');
-      }
-      await logsFile.copy(filePath);
-      return true;
-    } catch (e, s) {
-      ExceptionHandler.onError(FlutterErrorDetails(
-        exception: e,
-        stack: s,
-        library: "Export Logs",
-      ));
-      return false;
-    }
-  }
-
   Future<String> getAbbreviatedLogs() async {
     final appSupportPath = (await getApplicationSupportDirectory()).path;
     final logsFile = File("$appSupportPath/logs/debug.log");