PLANET-3329 we add a new cookie variable to store the last visited NRO website (check screenshot).
Since the landing page is on the same domain with almost all the NRO websites, it can read that cookie and use its value to redirect. This way the landing page doesn't need a cookie acknowledgement notice since it doesn't need to write a new cookie.
- Check if there a "greenpeace" cookie present and if it has gp_nro
- If so, use its value to redirect there
- Add a redirect notice when a redirect is taking place.