* improve outside click support
We used to use `pointerdown`, but some older devices with iOS 12 didn't
have support for that. Instead we used `mousedown`. But now it turns out
that some devices only properly use `pointerdown` and not the `mousedown` event.
Instead, we will listen to both, but make sure to only handle the event
once.
* update changelog
Robin Malfait
cefb8990a1