Adds support for versioned profiles

* Add zkgroup library

* tsconfig.json: Prettier wants to mess it up. :0(

* Initial take on versioned profile fetches

* Fix up the logging in getProfiles() - warn instead of error

* Introduce new VERSIONED_PROFILE_FETCH flag

* Update zkgroup dependency to v0.5.0

* Fix lint-deps - new zkgroup library brought in new debug dep

* ts/zkgroup: Introduce some commonly-used helper functions

* Update to latest serverPublicParams

* Don't derive profileKeyVersion unless flag is set

preload.js

@@ -15,6 +15,9 @@ try {
   const { app } = remote;
   const { nativeTheme } = remote.require('electron');
 
+  // Derive profile key versions, then use those to fetch versioned profiles from server
+  window.VERSIONED_PROFILE_FETCH = false;
+
   window.PROTO_ROOT = 'protos';
   const config = require('url').parse(window.location.toString(), true).query;
 
@@ -35,6 +38,7 @@ try {
   window.getNodeVersion = () => config.node_version;
   window.getHostName = () => config.hostname;
   window.getServerTrustRoot = () => config.serverTrustRoot;
+  window.getServerPublicParams = () => config.serverPublicParams;
   window.isBehindProxy = () => Boolean(config.proxyUrl);
 
   function setSystemTheme() {