Testrun bullet points

[mvarendorff]

This list contains all the bits and pieces of feedback from the testrun:

• [x] Not being able to send the sign-up message shows "Unknown error popup"
• [x] Leaving the server while waiting to get matched should remove you from the buddy project.
  • [x] There should be a note about that somewhere
• [x] Rejoining the server after getting matched should re-apply the Buddy Project role.
• [x] Add a command for buddy lookup for moderators
• [x] Improve "Done matching!" output for the matcher; include how many people were matched, skip the output if no matches were made
• [x] Fix "Access denied!" errors; they should return a different code; they also should be hidden from output
• [x] Allow ghost button only 24 hours after the buddy confirmed they were there
• [x] Prevent extended use of the Ghosted button
  • [x] Track number of uses
  • [x] On third usage attempt, redirect to Support
• [x] Padding on privacy + imprint between 1281px and 1440px
• [x] Make frontend URL configurable for YesBot to avoid wrong domains in staging runs
• [x] #224
• [x] "I'm here" button says interaction failed