Formally deprecate proofing and make typesetting part of main

[S-Haime]

Issue
Typesetting has been part of main for +/- 4 years. If I am not mistaken, proofing is no longer compatible with the most recent Janeway version and typesetting is required to continue using Janeway. As such, can proofing be formally deprecated?

Specific instances

• Remove roles no longer used (worth checking with clients)

  • Proofing Manager?
  • Production Manager?

• Workflow settings:
  
  Fairly certain this is deprecated when using typesetting. Alternatively, could this be hidden/unavailable on the dash when typesetting is installed?

• Workflow:
  
  (Also relevant: https://github.com/openlibhums/devops/tree/main/plugins To be updated. We may also no longer need the second tab on the spreadsheet linked, as it was tracking installs.)

• Reporting
  https://www.openlibhums.org/doctest/plugins/reporting/production/
  https://github.com/openlibhums/memory-alpha/pull/120 suggests that it is deprecated if I understand correctly :)

Reason for creating this issue
It's doing my head in when managing documentation. "Why is this here? What does it do? Don't ask questions."

[ajrbyers]

It will be deprecated as of version 1.8.

[S-Haime]

@ajrbyers NOICE. Thanks :) I'll make sure it wont be kicking around the docs then / markup where I haven't been sure or where I know I'll need to make changes once 1.8 is alive and kicking.