5890a2fc73
This change fixes an issue where SelectionArea would clear its selection when the application window lost focus by first checking if the application is running. This is needed because `FocusManager` is aware of the application lifecycle as of https://github.com/flutter/flutter/pull/142930 , and triggers a focus lost if the application is not active. Also fixes an issue where the `FocusManager` was not being reset on tests at the right time, causing it always to build with `TargetPlatform.android` as its context.