dart:io Platform is not available in Flutter web.

[robertoestivill]

Flutter useSubscription hook is calling Platform.isAndroid even in the web runtime.

Steps to reproduce

• Create a flutter web app
• Add grapqhl_flutter
• Use the useSubscription hook in a widget
• Once the code is subscribed, turn off the network.
• Turn the network back on
• See the log

Screenshots

Expected behavior
dart:io's Platform class should never be used in the Flutter web context as dart:io is not available.

Offending code here

https://github.com/zino-hofmann/graphql-flutter/blob/main/packages/graphql_flutter/lib/src/widgets/hooks/subscription.dart#L112-L138

Happy to provide a reproducer project/app if you can point me to an open/free demo api with a subscription.