App that has 3 dummy screens.
SCREEN 1: Login
SCREEN 2: Dashboard
SCREEN 3: Analytics
On screen 1, there should be a username and password field and a save button.
On saving, the app stores the credential in the AsysnStorage of the phone.
When you quit it and open it, it should navigate immediately to screen 2.
On screen 2, place a button to navigate to screen 3.
We should be able to navigate to screen 2 from screen 3.