cubicweb-collaboration #3765007 improve workflow states terminology [open]

The current freeze/frozen terminology is not very consensual and I expect it won't be very meaningful either to most users.

An alternative would be to use concepts from PLM which would be familiar to many end users (at least in the engineering world). However, as there does not seem to be a standard terminology amongst implementations of PLM concepts (and since an essential idea of PLM is to make workflow definition/customization easy), I would simply suggest to use a basic workflow like: draft -> published.

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