Introduce a Virtual Reality Activity

Discord should partner up with a VR dev team that can make a virtual space activity.
Two options for how to move forward with this:
1. A brand new activity (not recommended as its essentially starting from scratch to compete against existing alternatives)

2. A port to an existing VR game such as VRChat or Paraspace. Discord users can start an activity that logs them in to a lower-spec client of the game, allowing them to interact on the go.