app: wayland force redraw on config change

When applying window config on runtime, it is nessesary
to do full redraw in order to changed config option to
apply correctly. This fixes a bug where e.g window size
change renders next frame in updated dimensions while
native window is not scaled yet since it was waiting
for stage event to apply resize.

Signed-off-by: Marko Kungla <marko.kungla@gmail.com>

app/os_wayland.go

@@ -1079,6 +1079,7 @@ func (w *window) Configure(options []Option) {
 		w.setWindowConstraints()
 	}
 	w.w.Event(ConfigEvent{Config: w.config})
+	w.redraw = true
 }
 
 func (w *window) setWindowConstraints() {