test(e2e): extract shared playwright helpers

e2e/specs/mock/logout-from-sidebar.spec.ts

@@ -1,30 +1,20 @@
 import { expect, test } from "@playwright/test";
 
 import { mockCoreApis } from "../../fixtures/api-mocks";
+import {
+  clearBrowserState,
+  signInWithEmailAndOpenChat,
+} from "../../fixtures/test-helpers";
 
-test.beforeEach(async ({ context, page }) => {
-  await context.clearCookies();
+test.beforeEach(async ({ baseURL, context, page }) => {
+  await clearBrowserState(context, page, baseURL);
   await mockCoreApis(page);
 });
 
 test("user can log out from the sidebar after email login", async ({
   page,
 }) => {
-  await page.goto("/auth");
-
-  await page.getByRole("button", { name: /Other Sign In Options/i }).click();
-  await expect(
-    page.getByRole("dialog", { name: /Other sign-in options/i }),
-  ).toBeVisible();
-
-  await page.getByRole("button", { name: "Email Sign In" }).click();
-  await expect(page.getByPlaceholder("Email")).toHaveValue(
-    "chanwillian0@gmail.com",
-  );
-  await expect(page.getByPlaceholder("Password")).toHaveValue("12345678");
-
-  await page.getByRole("button", { name: "Login" }).click();
-  await expect(page).toHaveURL(/\/chat$/);
+  await signInWithEmailAndOpenChat(page);
   await expect(page.getByRole("button", { name: "Menu" })).toBeVisible();
 
   await page.getByRole("button", { name: "Menu" }).click();