feat(graphql): add subscription support to graphql
This is the continuation of this MR !337 (closed)
An example on how to use this https://github.com/elifesciences/elife-xpub/pull/368
This is the continuation of this MR !337 (closed)
An example on how to use this https://github.com/elifesciences/elife-xpub/pull/368