* Fix crash when using `View.hideKeyboardAndAwaitAnimation`
Remove the `View.OnApplyWindowInsetsListener` used in modern Android versions to detect if the insets changed after they do the first time: this is a single use operation and the listener will be called every time the insets change
Also, replace `Mutex` with `CompletableDeferred` so it doesn't matter if it's called several times, we only care about the first one.
* Don't try to hide the keyboard if it's already hidden. Also, add a 1s timeout in case everything goes wrong and we somehow never complete the future.
786c260fc2