Improve security handbook
- Add iCloud reference to 1Password section
- Remove beta reference from
1Password for teams
since they are no longer in beta
Also, was not sure whether I should be squashing these commits, so I've left them separate.
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
1Password for teams
since they are no longer in beta
Also, was not sure whether I should be squashing these commits, so I've left them separate.