fix for slides

lib/pages/invoice/invoce_list.dart

@@ -1,4 +1,5 @@
 import 'package:fcs/model/invoice_model.dart';
+import 'package:fcs/model/main_model.dart';
 import 'package:fcs/model/shipment_model.dart';
 import 'package:fcs/model_fcs/package_model.dart';
 import 'package:fcs/pages_fcs/package_list_row.dart';
@@ -38,10 +39,12 @@ class _InvoiceListState extends State<InvoiceList> {
 
   @override
   Widget build(BuildContext context) {
+        var owner = Provider.of<MainModel>(context).isOwner();
+
     return LocalProgress(
       inAsyncCall: _isLoading,
       child: DefaultTabController(
-        length: 3,
+        length: 2,
         child: Scaffold(
             appBar: AppBar(
               centerTitle: true,
@@ -65,22 +68,21 @@ class _InvoiceListState extends State<InvoiceList> {
               bottom: TabBar(
                 unselectedLabelColor: Colors.grey,
                 tabs: [
-                  Tab(text: "Boxes"),
                   Tab(text: "Pending"),
                   Tab(text: "Paid"),
                 ],
               ),
             ),
-            floatingActionButton: FloatingActionButton.extended(
+            floatingActionButton:owner? FloatingActionButton.extended(
               onPressed: () {
                 _newInvoice();
               },
               icon: Icon(Icons.add),
               label: Text(AppTranslations.of(context).text("invoices.add")),
               backgroundColor: primaryColor,
-            ),
+            ):null,
             body: TabBarView(
-              children: [_packages(), _pending(), _paided()],
+              children: [ _pending(), _paided()],
             )),
       ),
     );