Implement native method to remove all active notifications and use it in JavaScript

Summary: This differential implements native method to remove all active notifications and uses it in JavaScript. RElevant types are updated as well.

Test Plan:
Build the app. CLose it. Send several messages. Open the app, but do not read messages (so that notifications are still in notification center). Log out. Ensure notifications are removed from
notification center.

Reviewers: tomek, bartek

Reviewed By: tomek, bartek

Subscribers: ashoat, atul

Differential Revision: https://phab.comm.dev/D6379