HOLI-10889: add connections queries

See merge request app/holi-okuna!778

fix: add the missing `fail` function

See merge request app/holi-okuna!774

NOISSUE: feat(spaces): show space membership creation date in admin

See merge request app/holi-okuna!776

This reverts commit fecabf21.

HOLI-10810 emit user updated event

See merge request app/holi-okuna!773

NOISSUE: various pub/sub refactorings + ensuring that errors are *actually* logged

See merge request app/holi-okuna!772

NOISSUE: refactor pub/sub code locations

See merge request app/holi-okuna!771

Given that `publish_event` never raises an Exception, this commit removes the superfluous error handling (logging) in all helper methods using `publish_event`

The previous code would probably never have logged an error if one occurred because it was not waiting for the result of an async publish operation. This commit ensures this.

* removes helper functions from `openbook`
* moves user-related events, tests and helper functions to `openbook_auth`
* moves space-related events, tests and helper functions to `openbook_communities`

Rationale: it should not have gone into the event because the field is about to be deprecated and
removed. Can be removed now as there are no consumers using the field / event version in production
yet.

This reverts commit 8cf3db44, reversing
changes made to ed132338.

This reverts commit 27428dcd.

This reverts commit caf671b2.

This reverts commit 5dfc1ee5.

This reverts commit 70e3be56.

This reverts commit 3ca5924a, reversing
changes made to 8dd61d04.

This reverts commit 911a7f3c, reversing
changes made to 7a6ed000.