1.16.230.x: Whitelist is now AllowList

This is more of a heads up, but since it looks like 230 is probably a couple weeks out now, it’s worth bringing up that it does have a breaking change in the dedicated server.

From the change notes:
> Replaced "Whitelist" language use to "AllowList". Dedicated server command "whitelist" changed to "allowlist". Dedicated server "whitelist.json" file changed to "allowlist.json" file. JSON format remains the same.

I wonder if a way to approach this could be to just operate on both files?

Start by examining how the dedicated server currently handles whitelist commands and the whitelist.json file. Compare that behavior with the stated allowlist command and allowlist.json change, and define done as compatibility with the renamed command and file while preserving the existing JSON format.

Written by the indexing model from the issue text.