Random username generator for unknown users

[adriacidre]

Problem

Current version of status-react has some logic to assign "random" names to unknown users

Implementation

The library used at Clojure is https://chancejs.com/ which is based on Mersenne Twister number generator. This allows generating the same username for a specific address across different devices.

Acceptance Criteria

We should implement a similar algorithm so we can create the same usernames as created on clojure side based on a user address

Notes

Adjectives and animals maps have been ported from status-react on 4b9dbd3