[876] Closing a panel should put focus on the previous panel
[876] Closing a panel should put focus on the previous panel

HyungJon/HubTurbo,saav/HubTurbo,saav/HubTurbo,HyungJon/HubTurbo,gaieepo/HubTurbo,Sumei1009/HubTurbo,Sumei1009/HubTurbo,gaieepo/HubTurbo