Fix state of buttons (menu, toolbar)

When you selected via the Menu to go to Fly Mode, the QML
toolbar didn't followed the option, and if you selected
via the menu to go to all the three possible views (setup,
fly and plan) the menu would be all-selected.

This tries to keep consistency of things.

Signed-off-by: Tomaz Canabrava <tomaz.canabrava@intel.com>