Fix error handling in various admin and inventory screens

- Updated error handling in AdminAliasesPanel, AdminDatabasePanel, AdminPendingProductsPanel, and AdminProductsPanel to ensure consistent snackbar display without extra parentheses.
- Refined error handling in ConsumeInventoryScreen, CreateInventoryScreen, InventoryDetailScreen, InventoryEditScreen, and SwipeableInventoryTile to maintain consistent snackbar formatting.
- Improved error handling in MealPlanScreen, PantryScreen, ProfileScreen, and RecipeDetailScreen to ensure proper user feedback on errors.

flutter/lib/features/recipes/presentation/recipe_detail_screen.dart

@@ -193,7 +193,7 @@ class RecipeDetailScreen extends ConsumerWidget {
     } on ApiException catch (e) {
       if (!context.mounted) return;
       ScaffoldMessenger.of(context).showSnackBar(
-        buildCopyableErrorSnackBar(context, mapErrorToUserMessage(e, context))),
+        buildCopyableErrorSnackBar(context, mapErrorToUserMessage(e, context)),
       );
     }
   }
@@ -281,7 +281,7 @@ class RecipeDetailScreen extends ConsumerWidget {
     } on ApiException catch (e) {
       if (!context.mounted) return;
       ScaffoldMessenger.of(context).showSnackBar(
-        buildCopyableErrorSnackBar(context, mapErrorToUserMessage(e, context))),
+        buildCopyableErrorSnackBar(context, mapErrorToUserMessage(e, context)),
       );
     }
   }
@@ -353,7 +353,7 @@ class _DeleteButton extends ConsumerWidget {
     } on ApiException catch (e) {
       if (!context.mounted) return;
       ScaffoldMessenger.of(context).showSnackBar(
-        buildCopyableErrorSnackBar(context, mapErrorToUserMessage(e, context))),
+        buildCopyableErrorSnackBar(context, mapErrorToUserMessage(e, context)),
       );
     }
   }