Answers the 5 napplet->shell request types from @napplet/nap/notify.
Does NOT implement a real backend (no DOM Notification API, no channel
registry, no permission prompt). Host apps replace this via
runtime.registerService('notify', realHandler) when a real backend is
needed.
Create a stub-level notify service handler.
Answers the 5 napplet->shell request types from
@napplet/nap/notify. Does NOT implement a real backend (no DOM Notification API, no channel registry, no permission prompt). Host apps replace this viaruntime.registerService('notify', realHandler)when a real backend is needed.