fixing android build

lib/platform/browser_web.dart

@@ -0,0 +1,22 @@
+import 'package:web/web.dart' as web;
+
+/// Web implementation of browser APIs using package:web.
+class BrowserStorage {
+  String? getItem(String key) => web.window.localStorage.getItem(key);
+  void setItem(String key, String value) =>
+      web.window.localStorage.setItem(key, value);
+  void removeItem(String key) =>
+      web.window.localStorage.removeItem(key);
+}
+
+/// Web implementation for window.location
+class BrowserLocation {
+  String get href => web.window.location.href;
+  set href(String value) => web.window.location.href = value;
+}
+
+/// Browser utility class using package:web.
+class Browser {
+  static final BrowserStorage localStorage = BrowserStorage();
+  static final BrowserLocation location = BrowserLocation();
+}