[Feature Request] Add option to make management commands silent by default

[DaniDipp]

By default, CMI broadcasts management actions (kick/ban/unban) to all players on the server. There is a -s option to make a comment silent when executed (see #2756), but admins have to always tip-toe around these commands to not accidentally broadcast it, and this doesn't work for interface actions like unbanning people via the [X] button in /banlist.

Please add a config option to hide these actions to players by default. Not only are the notifications not relevant to anyone except the person executing the action and the person getting actioned, they are also pretty immersion-breaking on my roleplay server.

[DaniDipp]

Dirty workaround: Remove messageToAll and related reason/kickReason fields from the language file. This usually removes the feedback for the person executing the command as well, though.

[DaniDipp]

for unban, the field is called unBanned