refactor(inventory): simplify delete item logic and remove unnecessary parameters

Co-authored-by: Copilot <copilot@github.com>

flutter/lib/features/inventory/presentation/swipeable_inventory_tile.dart

@@ -309,7 +309,8 @@ class _TrailingActions extends ConsumerWidget {
   const _TrailingActions({required this.item});
 
   @override
-  Widget build(BuildContext context, WidgetRef ref) {
+  Widget build(BuildContext context) {
+    final ref = ref;
     return Row(
       mainAxisSize: MainAxisSize.min,
       children: [
@@ -348,7 +349,7 @@ class _DeleteButton extends ConsumerWidget {
   const _DeleteButton({required this.item});
 
   @override
-  Widget build(BuildContext context, WidgetRef ref) {
+  Widget build(BuildContext context) {
     return Tooltip(
       message: 'Ta bort',
       child: IconButton(
@@ -371,18 +372,14 @@ class _DeleteButton extends ConsumerWidget {
               ],
             ),
           );
-          if (confirmed != true) return;
-          try {
-            final token = await ref.read(authStateProvider.future);
-            await ref
-                .read(inventoryRepositoryProvider)
-                .deleteInventoryItem(item.id, token: token);
-            ref.invalidate(inventoryProvider);
-          } catch (e) {
-            if (!context.mounted) return;
-            ScaffoldMessenger.of(context).showSnackBar(
-              SnackBar(content: Text(mapErrorToUserMessage(e, context))),
-            );
+          if (confirmed == true) {
+            try {
+              await ref.read(inventoryRepositoryProvider).deleteItem(item.id);
+            } catch (e) {
+              ScaffoldMessenger.of(context).showSnackBar(
+                SnackBar(content: Text(mapErrorToUserMessage(e, context))),
+              );
+            }
           }
         },
       ),