Moved value into config
Added `botConfig.botRolesThatMustHaveUniqueName`
Refactored `getPmcNicknameOfMaxLength()`, removed all recursion + handles when no name is below desired length
Refactored `generateUniqueBotNickname()` to handle PMC names differently, use centralised pmc name function
Updated ragfair to utilise maxlength value from bot config