refactor(*): replace user instance methods

See merge request !50

fix(server): fix problem with await of pubsub

See merge request !49

feat(server): subscriptions added for user

See merge request !48

fix(server): fix in svg handling

See merge request !46

fix(server): correction in forceObjectKey feature and tests

See merge request !44

fix(models): improvments in file migration script

See merge request !43

refactor(server): make service url follow same structure as server url

See merge request !42

fix(models): create unique username if not exists

See merge request !41

fix(models): more gentle migrations for users teams identities and team members

See merge request !39

fix(server): use correct env variable for cors

See merge request !40