/voice unban should remove a user that is in the ban list, otherwise it should send a message to clarify that the user isn't banned.
/voice whitelist should add a user to the whitelist. The whitelist should be effective only if the channel is locked (by the server or the bot), otherwise it is ignored. If the user is already whitelisted, a clear and appropriated message should be prompted.
[x] Different behavior for unban and whitelist command
[x] Appropriated message if unbanning an already unbanished user
[x] Appropriated message if whitelisting an already whitelisted
/voice unbanshould remove a user that is in the ban list, otherwise it should send a message to clarify that the user isn't banned./voice whitelistshould add a user to the whitelist. The whitelist should be effective only if the channel is locked (by the server or the bot), otherwise it is ignored. If the user is already whitelisted, a clear and appropriated message should be prompted.[x] Different behavior for unban and whitelist command
[x] Appropriated message if unbanning an already unbanished user
[x] Appropriated message if whitelisting an already whitelisted