Before this change, the window state was explicitly updated whenever
Window.Option was called. However, the system may also change window
state as a result of user gestures, but those changes did not result in
ConfigEvents reflecting them.
Remove the explicit state updates and track them when the system tells
us it has changed.
This is a step towards fixing #600 which require accurate window state
tracking.
References: https://todo.sr.ht/~eliasnaur/gio/600
Signed-off-by: Elias Naur <mail@eliasnaur.com>
Elias Naur
af6dda67a5