feat: enhance product picker with searchable bottom sheet and improve recipe list item layout

flutter/lib/core/ui/app_shell.dart

@@ -4,9 +4,6 @@ import 'package:go_router/go_router.dart';
 
 import '../../features/auth/data/auth_providers.dart';
 import '../../features/recipes/data/recipes_grid_provider.dart';
-import 'package:flutter/material.dart';
-import 'package:flutter_riverpod/flutter_riverpod.dart';
-import 'package:go_router/go_router.dart';
 
 const _adminDestination = _AppDestination(
   path: '/admin',