Team/Org discussions: Initial commit

[Kreyren]

DO NOT MERGE

This merge request is work in progress published here as draft to coordinate the work with the rest of the team.

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Pair-programming: https://go.codetogether.com/#/051cb379-92f2-40e8-8c83-86e7c00441d2/GHkQneZm1ahbShpHhI6Jpu

Fixes: #14562

Current status

Rework of the merge request

TODO

• Rework the merge request based on new finding and brainstorms.
• Initial frontend implemented
  • Page with button "Ping"
• Initial backend implemented
  • Button "Ping" outputs "PING" in console
  • Button "Submit" outputs content of message field above it in console
• Data management
  • TBD
• Full Backend implementation
  • TBD
• Full Frontend implemented
  • Convert the current issue form in a template usable for discussions
  • Propose mock-up to upstream
  • TBD
• API implementation
  • TBD
• Make discussions opt-in
  • Per Organization
  • Per Team
• Resolve DNM (Do Not Merge) tags
• Optimize CI/CD
• Update documentation
• Handle legality
• Implement translations
• Remove Docker Refactor used here only for testing (proposed in Docker: Rework #14626)
• Provide summary of a design and decisions in merge request's original post

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Brainstorm: Data management

TBD

Signed-off-by: Jacob Hrbek [email protected]

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Merge process

Squash commits using GitHub UI with topic and message from original post of a merge request without 'Merge Process'

[Kreyren]

Transferred in Kreytea#1 will be submitted to upstream once finished.