When /kick @p command is used on a singleplayer world, it brings player back to server list

When a player executes the command /kick @p, the game correctly kicks them, but then incorrectly gives them the option to return to the server list. Instead, it should ask them to return to the singleplayer selection menu, because they didn't get to the world through the server list. It should, however, ask the player to return to the server list if they are playing while connected to someone else's singleplayer world using LAN.

Steps to reproduce:

1. Create/open a world in 1.15 or 1.16

2. Execute the command /kick @p

3. Observe that the game asks the player to return to the server list, even though the player didn't get to the world using the server list.