New login screen (#1331)

* wip

* feat: first draft of auth.config

* chore: auth methodS

* chore: styling

* styling, styling, styling

* feat: Auth notices

* chore: Remove server-rendered pages, move shared/components -> components

* lint

* cleanup

* cleanup

* fix: Remove unused component

* fix: Ensure env variables in prod too

* style tweaks

* fix: Entering SSO email into login form fails
fix: Tweak language around guest signin

server/routes.test.js

@@ -1,27 +0,0 @@
-/* eslint-disable flowtype/require-valid-file-annotation */
-import TestServer from "fetch-test-server";
-import app from "./app";
-import { flushdb } from "./test/support";
-
-const server = new TestServer(app.callback());
-
-beforeEach(flushdb);
-afterAll(server.close);
-
-describe("#index", async () => {
-  it("should render homepage", async () => {
-    const res = await server.get("/");
-    const html = await res.text();
-    expect(res.status).toEqual(200);
-    expect(html.includes("Our team’s knowledge base")).toEqual(true);
-  });
-
-  it("should render app if there is an accessToken", async () => {
-    const res = await server.get("/", {
-      headers: { Cookie: ["accessToken=12345667"] },
-    });
-    const html = await res.text();
-    expect(res.status).toEqual(200);
-    expect(html.includes('id="root"')).toEqual(true);
-  });
-});