fix: Improve backups initialization

lib/logic/cubit/backups_wizard/backups_wizard_cubit.dart

@@ -15,7 +15,7 @@ class BackupsWizardCubit extends Cubit<BackupsWizardState> {
 
     /// If config already exists, then user only lacks credentials,
     /// we don't need full re-initialization
-    if (serverBackupConfig != null) {
+    if (serverBackupConfig != null && serverBackupConfig.isInitialized) {
       emit(state.copyWith(currentStep: BackupsWizardStep.hostingRecovery));
     }
   }
@@ -54,12 +54,4 @@ class BackupsWizardCubit extends Cubit<BackupsWizardState> {
       ),
     );
   }
-
-  void finish() async {
-    emit(
-      state.copyWith(
-        currentStep: BackupsWizardStep.finished,
-      ),
-    );
-  }
 }

lib/logic/cubit/backups_wizard/backups_wizard_state.dart

@@ -44,5 +44,4 @@ enum BackupsWizardStep {
   settingsInitialization,
   confirmInitialization,
   confirmRecovery,
-  finished,
 }

lib/ui/pages/backups/setup/backup_confirmation.dart

@@ -1,7 +1,5 @@
-import 'package:cubit_form/cubit_form.dart';
 import 'package:easy_localization/easy_localization.dart';
 import 'package:flutter/material.dart';
-import 'package:selfprivacy/logic/cubit/backups_wizard/backups_wizard_cubit.dart';
 import 'package:selfprivacy/ui/components/buttons/brand_button.dart';
 import 'package:selfprivacy/ui/layouts/responsive_layout_with_infobox.dart';
 
@@ -31,7 +29,6 @@ class BackupConfirmationPage extends StatelessWidget {
             BrandButton.rised(
               onPressed: () {
                 onConfirmCallback();
-                context.read<BackupsWizardCubit>().finish();
               },
               text: 'basis.connect'.tr(),
             ),

lib/ui/pages/backups/setup/backup_initializing.dart

@@ -83,7 +83,8 @@ class BackupsInitializingPage extends StatelessWidget {
 
     return BlocListener<BackupsWizardCubit, BackupsWizardState>(
       listener: (final context, final state) {
-        if (cubit.state.currentStep == BackupsWizardStep.finished) {
+        if (context.watch<BackupsState>().backupsCredential != null &&
+            context.watch<BackupsState>().backblazeBucket != null) {
           context.router.popUntilRoot();
         }
       },