GraphQL: Pagination fixes to comply with the Relay spec

This require changes to data sources (archive, search, indexers etc) and need a design.

https://relay.dev/graphql/connections.htm Fix issue in pagination 'after' argument

Add missing mandatory fields to pageinfo
after argument fix It will return objects from 'after' cursor. This is not in sync with the spec

Migrated from T4367 (view on Phabricator)

Edited Jan 10, 2023 by Jayesh