Update Upload form tests with mocked provider

src/components/App/App.test.js

@@ -1,4 +1,5 @@
 jest.mock("../Contexts/UserContext");
+jest.mock("../Contexts/FileUploadContext");
 
 import { render, screen, cleanup, waitForElementToBeRemoved, waitFor } from "@testing-library/react"
 import { setToken } from "../Contexts/UserContext";