[Feature] Allow users to switch between servers when advancedServerInfo is enabled

[PurplProto]

The issue
Currently, if you have advancedServerInfo enabled, this disables listing servers in-game using /server. Attempting to connect to a well-known server i.e. /server lobby yields an error.

The feature request
I'd like there to be a toggle in the advancedServerInfo section of the config labelled something like "serverSwitchingDisabled" or even simpler "modpackMode". With this option set to true we would have the existing functionality where servers do not show when /server is executed in-game and attempting to connect to a well-known server i.e. /server lobby will fail as it currently does.
Having this option set to false would still have the server MOTD messages show on ping in the server list screen in the main menu of the game, however, users would now be able to see the other servers when running /server in-game and be able to attempt connecting to any of the servers listed there. This should not alter the effect of checking the server version when ViaVersion support is disabled.

Motivation example
As an admin/owner, I have 2 Forge servers and 2 vanilla servers, I want to display a different MOTD for each server.
As a player on Forge server 1, I want to switch to Forge server 2 without having to return to the server browser since both servers are running the same modpack.
As a player on Vanilla server 1, I want to go to Vanilla server 2 without having to return to the server browser.