Stabilise Cypress login tests (#9446)

* Attempt to stabilise login tests

* More stability

* Stabilise s'more

* don't clear LS as we rely on it for enablements

* Add small delay

* Iterate

* Update login.ts

cypress/e2e/create-room/create-room.spec.ts

@@ -60,7 +60,7 @@ describe("Create Room", () => {
 
         cy.url().should("contain", "/#/room/#test-room-1:localhost");
         cy.stopMeasuring("from-submit-to-room");
-        cy.get(".mx_RoomHeader_nametext").contains(name);
-        cy.get(".mx_RoomHeader_topic").contains(topic);
+        cy.contains(".mx_RoomHeader_nametext", name);
+        cy.contains(".mx_RoomHeader_topic", topic);
     });
 });