E2E/Playwright: Instantiate page in pw (#29765)

* instantiate page in pw

* update spec

* fix storage key and require user when logging in via API

---------

Co-authored-by: Mattermost Build <build@mattermost.com>

e2e-tests/playwright/tests/functional/channels/message_priority/standard_priority.spec.ts

@@ -4,48 +4,47 @@
 import {expect, test} from '@e2e-support/test_fixture';
 import MessagePriority from '@e2e-support/ui/components/channels/message_priority';
 
-test('MM-T5139: Message Priority - Standard message priority and system setting', async ({pw, pages}) => {
+test('MM-T5139: Message Priority - Standard message priority and system setting', async ({pw}) => {
     // # Setup test environment
     const {user} = await pw.initSetup();
 
     // # Log in as a user in new browser context
-    const {page} = await pw.testBrowser.login(user);
+    const {page, channelsPage} = await pw.testBrowser.login(user);
 
     // # Visit default channel page
-    const channelPage = new pages.ChannelsPage(page);
-    await channelPage.goto();
-    await channelPage.toBeVisible();
+    await channelsPage.goto();
+    await channelsPage.toBeVisible();
 
     const messagePriority = new MessagePriority(page.locator('body'));
 
     // Open menu
-    await channelPage.centerView.postCreate.openPriorityMenu();
+    await channelsPage.centerView.postCreate.openPriorityMenu();
 
     // Use messagePriority for dialog interactions
     await messagePriority.verifyPriorityDialog();
     await messagePriority.verifyStandardOptionSelected();
 
     // # Close menu and post message
-    await channelPage.centerView.postCreate.priorityButton.click();
+    await channelsPage.centerView.postCreate.priorityButton.click();
     const testMessage = 'This is just a test message';
-    await channelPage.postMessage(testMessage);
+    await channelsPage.postMessage(testMessage);
 
     // # Verify message posts without priority label
-    const lastPost = await channelPage.centerView.getLastPost();
+    const lastPost = await channelsPage.centerView.getLastPost();
     await lastPost.toBeVisible();
     await lastPost.toContainText(testMessage);
     await expect(lastPost.container.locator('.post-priority')).not.toBeVisible();
 
     // # Open post in RHS and verify
     await lastPost.container.click();
-    await channelPage.sidebarRight.toBeVisible();
+    await channelsPage.sidebarRight.toBeVisible();
 
     // # Get RHS post and verify content
-    const rhsPost = await channelPage.sidebarRight.getLastPost();
+    const rhsPost = await channelsPage.sidebarRight.getLastPost();
     await rhsPost.toBeVisible();
     await rhsPost.toContainText(testMessage);
     await expect(rhsPost.container.locator('.post-priority')).not.toBeVisible();
 
     // # Verify RHS formatting bar doesn't have priority button
-    await expect(channelPage.sidebarRight.postCreate.priorityButton).not.toBeVisible();
+    await expect(channelsPage.sidebarRight.postCreate.priorityButton).not.toBeVisible();
 });