Added Dialog windows for "configuration successful"
"no configuration" and "update OS" for Onboarding.
Refactor Dialog window implementation and usage of
DialogMetadata in other applications.
-Create application->switchManyWindowsBack() method
-Create equivalent to empty window enum class
-Remove stored prevWindows variables
-Add bottom bar to empty window (equivalent to allEvents)
-Repair going back to previous windows functionality
-Repair switching window (with empty events DB)
-Add EventShift value to event records time