Fixed bug that 2nd app control is not working

Fixed bug that 2nd app control is not working

[Issue#]    HQ Synergy TF team reported the issue
[Problem]   Only 1st app control is working.
            After 2nd app control is not working.
[Cause]     There is wrong scope for first initializing code when start SimpleUI::exec
[Sollution] Move opening new tab to out of first initializing scope.
[Verify]    App control should open the tab even after 2nd command.
            HQ Synergy TF team verified thie fix.

Change-Id: Ic59d7e977c07a90de6aea455224d4bb44db7c922
Signed-off-by: Jung Ick Guack <ji.guack@samsung.com>