Improved search, changed saved view display

lib/features/search_app_bar/view/search_app_bar.dart

@@ -0,0 +1,53 @@
+import 'package:flutter/material.dart';
+import 'package:paperless_mobile/core/widgets/material/search/m3_search_bar.dart';
+import 'package:paperless_mobile/extensions/flutter_extensions.dart';
+
+typedef OpenSearchCallback = void Function(BuildContext context);
+
+class SearchAppBar extends StatefulWidget with PreferredSizeWidget {
+  final PreferredSizeWidget? bottom;
+  final OpenSearchCallback onOpenSearch;
+  final Color? backgroundColor;
+  const SearchAppBar({
+    super.key,
+    required this.onOpenSearch,
+    this.bottom,
+    this.backgroundColor,
+  });
+
+  @override
+  State<SearchAppBar> createState() => _SearchAppBarState();
+
+  @override
+  Size get preferredSize => const Size.fromHeight(kToolbarHeight);
+}
+
+class _SearchAppBarState extends State<SearchAppBar> {
+  @override
+  Widget build(BuildContext context) {
+    return SliverAppBar(
+      floating: true,
+      pinned: true,
+      snap: true,
+      backgroundColor: widget.backgroundColor,
+      title: SearchBar(
+        height: kToolbarHeight - 8,
+        supportingText: "Search documents",
+        onTap: () => widget.onOpenSearch(context),
+        leadingIcon: IconButton(
+          icon: const Icon(Icons.menu),
+          onPressed: () {
+            Scaffold.of(context).openDrawer();
+          },
+        ),
+        trailingIcon: IconButton(
+          icon: const CircleAvatar(
+            child: Text("A"),
+          ),
+          onPressed: () {},
+        ),
+      ).paddedOnly(top: 4, bottom: 4),
+      bottom: widget.bottom,
+    );
+  }
+}