TAC: Release Announcement (#12380)

* WIP

* Store the release announcements in the account settings

* Update TAC release announcement description

* Fix settings content comparison

* Add logging in case of failure

* Watch settings changes

* I add release announcement settings to disable it

* Disable release announcement in e2e test

* Add release announcement in e2e test

* Add tests for ReleaseAnnouncementStore.ts

* Update compound-web to `3.3.0`

* Update TAC tests

* Update Labs tests

* Nits

* Add test for ReleaseAnnouncement.tsx

* Update `@vector-im/compound-web`

* Add playwright snapshot

* Delete false playwright screenshot

* Wait for EW to be displayed after reload

* Add screenshot

* Clean util file

* Renaming and comments fixing

* Use second store instead of looking in the store.

---------

Co-authored-by: R Midhun Suresh <hi@midhun.dev>

test/components/structures/ReleaseAnnouncement-test.tsx

@@ -0,0 +1,48 @@
+/*
+ *
+ * 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.
+ * /
+ */
+
+import React from "react";
+import { render, screen, waitFor } from "@testing-library/react";
+
+import { ReleaseAnnouncement } from "../../../src/components/structures/ReleaseAnnouncement";
+
+describe("ReleaseAnnouncement", () => {
+    function renderReleaseAnnouncement() {
+        return render(
+            <ReleaseAnnouncement
+                feature="threadsActivityCentre"
+                header="header"
+                description="description"
+                closeLabel="close"
+            >
+                <div>content</div>
+            </ReleaseAnnouncement>,
+        );
+    }
+
+    test("render the release announcement and close it", async () => {
+        renderReleaseAnnouncement();
+
+        // The release announcement is displayed
+        expect(screen.queryByRole("dialog", { name: "header" })).toBeDefined();
+        // Click on the close button in the release announcement
+        screen.getByRole("button", { name: "close" }).click();
+        // The release announcement should be hidden after the close button is clicked
+        await waitFor(() => expect(screen.queryByRole("dialog", { name: "header" })).toBeNull());
+    });
+});