Playwright: Convert /e2e/polls (#12065)

* Convert tests

* Conver tests

* Move type import down

* Remove reference to cypress types

* Update screenshot

* Remove client.evaluate

* More changes

* Use credentials from bot object

* Use credentials

* Remove comment

* Update screenshots

* Use sendMessage method

* Create dummy test

* Use userId from credentials

cypress/e2e/dummy.spec.ts

@@ -0,0 +1,19 @@
+/*
+Copyright 2024 The Matrix.org Foundation C.I.C.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+/// <reference types="cypress" />
+
+it("Dummy test to make CI pass", () => {});