wireup encryption demo

[xoron]

creating a javascript encryption demo page: https://chat.positive-intentions.com/#/encrypt

in the file described as: src/components/pages/encryption/Encryption.js some UI components are created, but it isnt connected to the functionality.

encryption functionality is as decribed by the file here: https://github.com/positive-intentions/cryptography/blob/staging/src/stories/components/Cryptography.tsx

it is used as a federated module like in the file: src/components/p2p/ReduxConnectedPeerProvider.js. see import { useCryptography } from "cryptography/Cryptography"; usage in the file.