When a user updates the preferred name, we should just ignore if the name is an ENS name,
because the ENS name is set only in the ENS popup. But this also means that if a user set
the profile name to an ENS name, this change will also be ignored.
* chore: remove opts when create account
* chore: namings and better logging
* chore: config api modules with flag.
* chore: renaming
* chore: use methods on object
* fix: allow less characters for name
* fix: display name unit test
* chore: revert display name check.
* chore: change simulate display name.