Validate bitcoin's saved transaction priority

lib/entities/default_settings_migration.dart

@@ -1,10 +1,12 @@
 import 'dart:io' show File, Platform;
 import 'package:cake_wallet/bitcoin/bitcoin.dart';
+import 'package:cw_bitcoin/bitcoin_transaction_priority.dart';
 import 'package:cw_core/pathForWallet.dart';
 import 'package:cake_wallet/entities/secret_store_key.dart';
 import 'package:flutter/foundation.dart';
 import 'package:flutter_secure_storage/flutter_secure_storage.dart';
 import 'package:hive/hive.dart';
+import 'package:share_plus/share_plus.dart';
 import 'package:shared_preferences/shared_preferences.dart';
 import 'package:cake_wallet/entities/preferences_key.dart';
 import 'package:cw_core/wallet_type.dart';
@@ -139,6 +141,10 @@ Future defaultSettingsMigration(
           await addOnionNode(nodes);
           break;
 
+        case 19:
+          await validateBitcoinSavedTransactionPriority(sharedPreferences);
+          break;
+
         default:
           break;
       }
@@ -154,6 +160,14 @@ Future defaultSettingsMigration(
       PreferencesKey.currentDefaultSettingsMigrationVersion, version);
 }
 
+Future<void> validateBitcoinSavedTransactionPriority(SharedPreferences sharedPreferences) async {
+  int? savedBitcoinPriority = sharedPreferences.getInt(PreferencesKey.bitcoinTransactionPriority);
+  if (!BitcoinTransactionPriority.all.any((element) => element.raw == savedBitcoinPriority)) {
+    await sharedPreferences.setInt(
+        PreferencesKey.bitcoinTransactionPriority, BitcoinTransactionPriority.defaultPriority.raw);
+  }
+}
+
 Future<void> addOnionNode(Box<Node> nodes) async {
   final onionNodeUri = "cakexmrl7bonq7ovjka5kuwuyd3f7qnkz6z6s6dmsy3uckwra7bvggyd.onion:18081";
 

lib/main.dart

@@ -129,7 +129,7 @@ Future<void> main() async {
         exchangeTemplates: exchangeTemplates,
         transactionDescriptions: transactionDescriptions,
         secureStorage: secureStorage,
-        initialMigrationVersion: 18);
+        initialMigrationVersion: 19);
     runApp(App());
   } catch (e, stacktrace) {
     runApp(MaterialApp(