local favorites search page

lib/pages/favorites/local_search_page.dart

@@ -0,0 +1,41 @@
+part of 'favorites_page.dart';
+
+class LocalSearchPage extends StatefulWidget {
+  const LocalSearchPage({super.key});
+
+  @override
+  State<LocalSearchPage> createState() => _LocalSearchPageState();
+}
+
+class _LocalSearchPageState extends State<LocalSearchPage> {
+  String keyword = '';
+
+  var comics = <FavoriteItemWithFolderInfo>[];
+
+  late final SearchBarController controller;
+
+  @override
+  void initState() {
+    super.initState();
+    controller = SearchBarController(onSearch: (text) {
+      keyword = text;
+      comics = LocalFavoritesManager().search(keyword);
+      setState(() {});
+    });
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      body: SmoothCustomScrollView(slivers: [
+        SliverSearchBar(controller: controller),
+        SliverGridComics(
+          comics: comics,
+          badgeBuilder: (c) {
+            return (c as FavoriteItemWithFolderInfo).folder;
+          },
+        ),
+      ]),
+    );
+  }
+}