b9c889d7d0
## Description Relands https://github.com/flutter/flutter/pull/156968 wich was reverted in https://github.com/flutter/flutter/pull/157378 This PR makes `EditableText` aware of the lifecycle 'resumed' state to let the current selection unchanged when the application is resumed (on web and desktop, 'resumed' means the Flutter app window regained focus). Before this PR, on web and desktop, the whole content of a `TextField` was selected whenever a `TextField` gained focus. This is the correct behavior when tabbing between fields but it is not when a field regains focus after the application is resumed ## Related Issue Fixes [When switching to another browser tab or window and then going back, all text on TextField is selected automatically](https://github.com/flutter/flutter/issues/156078). ## Tests Adds 1 test.
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