Uuid import statements need updating

[klinkow]

Import statements for uuid are deprecated, causing this console error:

Deep requiring like `const uuidv4 = require('uuid/v4');` is deprecated as of [email protected]. 
Please require the top-level module when using the Node.js CommonJS module or use 
ECMAScript Modules when bundling for the browser. See 
https://github.com/uuidjs/uuid#deep-requires-now-deprecated for more information.

[klinkow]

Updating import uuid4 from 'uuid/v4' -> import { v4 as uuid4 } from 'uuid' across a few files solves the problem. I've got a branch that does this I can push up if you want to grant me permission @nikmolnar .