Send user to lobby of deleted chan when parting from active chan
Send user to lobby of deleted chan when parting from active chan

Instead of always sending them back to the very first lobby on the app.
This fixes a bug introduced in recent layout change but does not bring previous behavior back:
When closing active channel, user gets sent to lobby instead of previously visited channel.

ScoutLink/lounge,thelounge/lounge,rockhouse/lounge,rockhouse/lounge,MaxLeiter/lounge,FryDay/lounge,williamboman/lounge,sebastiencs/lounge,rockhouse/lounge,MaxLeiter/lounge,realies/lounge,ScoutLink/lounge,libertysoft3/lounge-autoconnect,metsjeesus/lounge,metsjeesus/lounge,FryDay/lounge,thelounge/lounge,williamboman/lounge,williamboman/lounge,metsjeesus/lounge,libertysoft3/lounge-autoconnect,libertysoft3/lounge-autoconnect,sebastiencs/lounge,realies/lounge,sebastiencs/lounge,FryDay/lounge,ScoutLink/lounge,realies/lounge,MaxLeiter/lounge