Bug Fixes & Auth Communication improvements

• Fixed a bug causing internal errors to be thrown whenever tab completing a command
• Fixed a bug causing players with no 2fa to be taken as if they have 2fa enabled
• Fixed a bug allowing players to use /2fa remove before authenticating
• Added more configuration settings for auth communication
• Added a new permission: 2fa.alerts.
  • Players with this permission will get important alerts from the plugin if it finds any problems with the configuration