bio auth on mac + package updates for 3.19.3/5 (#1398)

* bio auth mac fix

* remove comment and change duration from 2 to 0

* cherry pick previous changes

* workaround for secure storage bug on mac

* bump version to 3.19.5 (because breez will need this version anyways)

* some code cleanup

* some changess didn't get saved

* just documenting the issue [skip ci]

* undo accidental removal + minor code cleanup

* merge conflicts

* Minor UI change [skip ci]

---------

Co-authored-by: Omar Hatem <omarh.ismail1@gmail.com>

lib/view_model/auth_view_model.dart

@@ -106,14 +106,10 @@ abstract class AuthViewModelBase with Store {
   @action
   Future<void> biometricAuth() async {
     try {
-      final canBiometricAuth = await _biometricAuth.canCheckBiometrics();
-
-      if (canBiometricAuth) {
-        final isAuthenticated = await _biometricAuth.isAuthenticated();
-
-        if (isAuthenticated) {
-          state = ExecutedSuccessfullyState();
-        }
+      if (await _biometricAuth.canCheckBiometrics() && await _biometricAuth.isAuthenticated()) {
+        state = ExecutedSuccessfullyState();
+      } else {
+        throw Exception('Biometric authentication failed');
       }
     } catch (e) {
       state = FailureState(e.toString());

lib/view_model/edit_backup_password_view_model.dart

@@ -1,3 +1,4 @@
+import 'package:cake_wallet/core/secure_storage.dart';
 import 'package:mobx/mobx.dart';
 import 'package:flutter_secure_storage/flutter_secure_storage.dart';
 import 'package:cake_wallet/entities/secret_store_key.dart';
@@ -37,8 +38,7 @@ abstract class EditBackupPasswordViewModelBase with Store {
   @action
   Future<void> save() async {
     final key = generateStoreKeyFor(key: SecretStoreKey.backupPassword);
-    await secureStorage.delete(key: key);
-    await secureStorage.write(key: key, value: backupPassword);
+    await writeSecureStorage(secureStorage, key: key, value: backupPassword);
     secretStore.write(key: key, value: backupPassword);
   }
 }