Change from mailbox to folder (#2156)

(cherry picked from commit 1bdaa417a25648bbe5e9c3637c413c246da3d7ef)

lib/features/manage_account/presentation/mailbox_visibility/mailbox_visibility_controller.dart

@@ -207,7 +207,7 @@ class MailboxVisibilityController extends BaseMailboxController {
     if (currentOverlayContext != null && currentContext != null) {
       _appToast.showToastMessage(
         currentOverlayContext!,
-        AppLocalizations.of(currentContext!).toastMsgHideMailboxSuccess,
+        AppLocalizations.of(currentContext!).toastMsgHideFolderSuccess,
         actionName: AppLocalizations.of(currentContext!).undo,
         onActionClick: () => _subscribeMailboxAction(
           SubscribeMailboxRequest(

lib/features/manage_account/presentation/mailbox_visibility/widgets/mailbox_visibility_header_widget.dart

@@ -17,13 +17,13 @@ class MailboxVisibilityHeaderWidget extends StatelessWidget {
       child: Column(
           crossAxisAlignment: CrossAxisAlignment.start,
           children: [
-            Text(AppLocalizations.of(context).mailboxVisibility,
+            Text(AppLocalizations.of(context).folderVisibility,
                 style: const TextStyle(
                     fontSize: 20,
                     fontWeight: FontWeight.bold,
                     color: Colors.black)),
             const SizedBox(height: 4),
-            Text(AppLocalizations.of(context).mailboxVisibilitySubtitle,
+            Text(AppLocalizations.of(context).folderVisibilitySubtitle,
                 style: const TextStyle(
                     fontSize: 16,
                     fontWeight: FontWeight.w500,