Keep tab's navigation state when switching

[Nealsoni00]

• Maintain the tab state independent of one another

Desired outcome:

1. two tab app: tab1, tab2
2. On tab1, navigating to a different view that is pushed to the screen (call it tab1/second)
3. Switch to tab2
4. Switch back to tab1 should show you tab1/second

This should work if we push a view name that doesn't start with Tab2

• Ex:
  1. Navigation tab1 goes from: tab1 --> tab1/second --> teacher/report
  2. Then you navigate to tab2
  3. When moving back to tab1, it should still be teacher/report