refactor: replace Navigator with Modular for dialog dismissal in client hubs and settings actions

apps/mobile/packages/features/client/hubs/lib/src/presentation/pages/client_hubs_page.dart

@@ -248,15 +248,15 @@ class ClientHubsPage extends StatelessWidget {
           ),
           actions: <Widget>[
             TextButton(
-              onPressed: () => Navigator.of(dialogContext).pop(),
+              onPressed: () => Modular.to.pop(),
               child: const Text('Cancel'),
             ),
             TextButton(
               onPressed: () {
-                Navigator.of(dialogContext).pop();
                 BlocProvider.of<ClientHubsBloc>(
                   context,
                 ).add(ClientHubsDeleteRequested(hub.id));
+                Modular.to.pop();
               },
               style: TextButton.styleFrom(
                 foregroundColor: UiColors.destructive,

apps/mobile/packages/features/client/settings/lib/src/presentation/widgets/client_settings_page/settings_actions.dart

@@ -83,7 +83,7 @@ class SettingsActions extends StatelessWidget {
           // Cancel button
           UiButton.secondary(
             text: t.common.cancel,
-            onPressed: () => Navigator.of(dialogContext).pop(),
+            onPressed: () => Modular.to.pop(),
           ),
         ],
       ),