Bug: Games with unauthenticated players can't be rejoined

[lijim]

Right now rejoin works fine if there are two or more players that are logged in, but if one or more players don't have logins, the game doesn't handle rejoin functionality as expected, instead booting both players out.

The suspected code is the code for calculating if a whole room is abandoned:

const isEntireRoomDisconnected = (room: DetailedRoomWithBoard): boolean => {
        if (!room) {
            return false;
        }
        const allSessions = findAllSessions();
        const { players } = room;
        return players.every(
            (player) =>
                !allSessions.find((session) => session.username === player)
                    ?.connected
        );
    };