Example: update ofType

[timdeschryver]

With #1676 merged we can update the example app.

E.g. :

-- ofType(AuthActions.logoutConfirmation.type),
++ ofType(AuthActions.logoutConfirmation),

And also how the Actions are inject:

constructor(
--  private actions$: Actions<LoginPageActions.LoginPageActionsUnion>,
++  private actions$: Actions,
) {}

[wesleygrimes]

I'm on it