Feature request: config option to show nicknames in player-based tab completion

[Harvle]

Hi, i think it'd be a great feature to have players' nicknames in tab completion as well as their actual name to make commands easier for people with confusing name. The formatting would be cleared from the nickname for the completion, and it'd work on any command that lists online players (and maybe even offline players using OfflineCommands? not sure how possible this is).

Thanks for considering!