isConnected property missing from Board props

[walkerkd]

The client board props documentation at https://boardgame.io/documentation/#/api/Client documents

isConnected: true if connection to the server is active.

However this appears to be missing in v0.52.2

I suspect that this declaration in client.d.ts incorrectly defines 2 isActive fields and one of them should be isConnected:

export declare type ClientState<G extends any = any> = null | (State<G> & {
    isActive: boolean;
    isActive: boolean;
    log: LogEntry[];
});