[UNSTABLE] Fix two tests. `render()` related, mostly

webpack/__test_support__/mock_fbtoaster.ts

@@ -1,4 +1,5 @@
 jest.mock("farmbot-toastr", () => ({
+  fun: jest.fn(),
   init: jest.fn(),
   success: jest.fn(),
   info: jest.fn(),

webpack/nav/__tests__/test_sync_button.tsx

@@ -2,14 +2,14 @@ import * as React from "react";
 import { SyncButton } from "../sync_button";
 import { bot } from "../../__test_support__/fake_state/bot";
 import { defensiveClone } from "../../util";
-import { render } from "enzyme";
+import { shallow } from "enzyme";
 
 const FAKE_BOT_STATE = defensiveClone(bot);
 
 describe("<SyncButton/>", function () {
   it("renders nothing when not given a bot", function () {
     const dispatcher = jest.fn();
-    const result = render(<SyncButton user={undefined}
+    const result = shallow(<SyncButton user={undefined}
       dispatch={dispatcher}
       bot={FAKE_BOT_STATE} />);
     expect(result.hasClass("nav-sync")).toBeFalsy();