Misc. changes

[Malivil]

Changelog

Additions

• Added messages to existing twins when a player becomes a twin during an active round

Changes

• Changed role pack to apply next round, if the round is already active
• Changed logic to reassign a player's role if they change roles into being a solo twin during an active round
• Ported "TTT: Use gmod_language setting by default"
• Ported "TTT: Translatability improvements"

Fixes

• Fixed cheat sheet getting cut off when it exceeded the height of the screen and a role pack was enabled
• Fixed jester, detective, innocent, and traitor role rename ConVars not working

Developer

• Added ROLE_STRINGS_DEFAULT as a copy of ROLE_STRINGS from before role strings are changed by ConVars

Affected Issues

#925
#926
#927

Checklist

• Tested in-game
• Release Notes updated
• API Docs updated
  • Markdown
  • Website (changes marked with "beta only" notation if applicable)
• If this is for a new role:
  • Icons created
  • Tutorial created
  • Documentation
    • CONVARS.md
    • Website (changes marked with "beta only" notation if applicable)
  • ConVars added to ULX list
  • plymeta:IsRoleAbilityDisabled used
• Otherwise:
  • CONVARS.md updated, if applicable
  • ULX updated (either added to list of convars for a role, or PR created in ULX repo [Add link below])