Add compat data for NotificationEvent (#1008)
Add compat data for NotificationEvent (#1008)

* Add compat data NotificationEvent

* Add secure_context_only subfeature

* Edit secure_context_only

* Add secure_contect_required subfeature

* Add fullstops and correct secure_context_required schema

* Edit all opera versions

* Edit constructor description

mdn/browser-compat-data,chrisdavidmills/browser-compat-data,chrisdavidmills/browser-compat-data,teoli2003/browser-compat-data,mdn/browser-compat-data