we also need to send it on bind
Can we change them all at once.
This needs a
wl_resource_get_version(resource) < ORG_KDE_PLASMA_SEND_STACK_SOMETHING_SOMETHING_SINCE_VERSION
A user could be using a flatpak or something with a bundled kwayland that's out of date with kwin. At that point we don't want the client to receive this event or it will explode.
We need to send the stacking order here, this way if a client connects and nothing changes, they still have the right order.