Only show once per user (email)

[AdamGrzybkowski]

Implement flag storage to ensure the Login intro is shown once, otherwise, start he OAuth automatically.

If accessToken doesn't exist { // (means the user never logged in to QE before)
 
    if the user was shown the intro before {
 
            start OAuth flow immediately
 
     } else {
 
            show the intro screen
     }
 
}
 
else {
 
    if access token is expired {
 
            show the session expired state
 
    } else {
 
           show the QE content as usual
 
    }
 
}