Fix default user and org visibility

[abrain]

The new variables DEFAULT_USER_VISIBILITY and DEFAULT_ORG_VISIBILITY always were set to true because of a ternary filter.

[DO1JLR]

based on the docs to tenary, it should work:
https://docs.ansible.com/ansible/latest/playbook_guide/playbooks_filters.html#defining-different-values-for-true-false-null-ternary

Are you sure, the tenary filter is not working @abrain ?

[abrain]

The ternary filter was working fine. The issue is rather that the variables DEFAULT_USER_VISIBILITY and DEFAULT_ORG_VISIBILITY aren't booleans but values like public or private and shouldn't have a ternary filter applied to them.

[DO1JLR]

ah, good point. thanks.