Motivation / Problem

12.0+ servers only use an invite code as a connection string, rather than an IP/port. Using "Server address: " as the prefix for that is a bit confusing

Description

Add a new 'Invite code: ' prefix string

Limitations

Ideally this would be backported, but adding a new string to backports is a bit tricky

Checklist for review

Some things are not automated, and forgotten often. This list is a reminder for the reviewers.

• The bug fix is important enough to be backported? (label: 'backport requested')
• This PR touches english.txt or translations? Check the guidelines
• This PR affects the save game format? (label 'savegame upgrade')
• This PR affects the GS/AI API? (label 'needs review: Script API')
  • ai_changelog.hpp, gs_changelog.hpp need updating.
  • The compatibility wrappers (compat_*.nut) need updating.
• This PR affects the NewGRF API? (label 'needs review: NewGRF')
  • newgrf_debug_data.h may need updating.
  • PR must be added to API tracker