feat: make server owner of tabs

lib/views/bar/bar_screen_view.dart

@@ -9,7 +9,6 @@ import '../../l10n/app_localizations.dart';
 import '../../l10n/app_localizations_helpers.dart';
 import '../../models/product.dart';
 import '../../models/remote_command.dart';
-import '../../services/product_service.dart';
 import '../../utils/app_updater.dart';
 import '../../viewmodels/admin_pin_view_model.dart';
 import '../../viewmodels/bar_screen_view_model.dart';
@@ -85,15 +84,9 @@ class _BarScreenViewState extends State<BarScreenView> {
       await viewModel.addProductToSelectedTab(product);
     } catch (e) {
       if (!mounted) return;
-      ScaffoldMessenger.of(context).showSnackBar(
-        SnackBar(
-          content: Text(
-            e is InsufficientStockException
-                ? l10n.productOutOfStock
-                : l10n.couldNotAddProductToTab,
-          ),
-        ),
-      );
+      ScaffoldMessenger.of(
+        context,
+      ).showSnackBar(SnackBar(content: Text(l10n.couldNotAddProductToTab)));
     }
   }
 
@@ -108,10 +101,6 @@ class _BarScreenViewState extends State<BarScreenView> {
     final viewModel = context.watch<BarScreenViewModel>();
     final productsViewModel = context.watch<ProductListViewModel>();
     final settings = context.watch<SettingsViewModel>().settings;
-    final stockByProductId = {
-      for (final product in productsViewModel.products)
-        if (!product.infiniteStock) product.id: product.stockQuantity,
-    };
 
     return Scaffold(
       appBar: AppBar(
@@ -206,7 +195,6 @@ class _BarScreenViewState extends State<BarScreenView> {
                   tabs: viewModel.tabs,
                   selectedTab: viewModel.selectedTab,
                   selectedTabId: viewModel.selectedTabId,
-                  stockByProductId: stockByProductId,
                   showSearch: _showSearch,
                   onTabSelected: viewModel.selectTab,
                   onItemQuantityChanged: viewModel.changeItemQuantity,