Why
- in addition to LDAP groups (currently named "Primary groups" in techcontribs), there are also shell groups.
- these are important and useful to know about
- no tool that I know about such as ldap.toolforge.org gets both in the same place. would be useful
What
- rename "Primary groups" to "LDAP groups"
- add a section below "LDAP groups" called "Shell groups"
- it should get its data by reading and parsing https://gerrit.wikimedia.org/r/plugins/gitiles/operations/puppet/+/refs/heads/production/modules/admin/data/data.yaml