Fix up and enable a cypress test that uses key backup (#11958)

* Fix up and enable a cypress test that uses key backup

* fix imports

cypress/e2e/crypto/crypto.spec.ts

@@ -28,7 +28,6 @@ import {
     logOutOfElement,
     waitForVerificationRequest,
 } from "./utils";
-import { skipIfRustCrypto } from "../../support/util";
 
 interface CryptoTestContext extends Mocha.Context {
     homeserver: HomeserverInstance;
@@ -451,8 +450,6 @@ describe("Cryptography", function () {
         });
 
         it("Should show a grey padlock for a key restored from backup", () => {
-            skipIfRustCrypto(); // doesn't work due to https://github.com/vector-im/element-web/issues/26393
-
             enableKeyBackup();
 
             // bob sends a valid event
@@ -465,6 +462,10 @@ describe("Cryptography", function () {
                 // no e2e icon
                 .should("not.have.descendants", ".mx_EventTile_e2eIcon");
 
+            // It can take up to 10 seconds for the key to be backed up. We don't really have much option other than
+            // to wait :/
+            cy.wait(10000);
+
             /* log out, and back in */
             logOutOfElement();
             cy.get<string>("@securityKey").then((securityKey) => {

cypress/e2e/crypto/utils.ts

@@ -155,6 +155,9 @@ export function logOutOfElement() {
     cy.get(".mx_Dialog .mx_QuestionDialog").within(() => {
         cy.findByRole("button", { name: "Sign out" }).click();
     });
+
+    // Wait for the login page to load
+    cy.findByRole("heading", { name: "Sign in" }).click();
 }
 
 /**