MM-52642 CLD-6352 MM-54007 Prepare setup for Playwright pipeline (#24647)

* pipeline(playwright): prepare setup for playwright

* feedback address

* clean up readme

* Fix docker-compose command and definition for dashboard

* fix the dashboard

* ignore dashboard when formatting

---------

Co-authored-by: Mattermost Build <build@mattermost.com>
Co-authored-by: Mario Vitale <mvitale1989@hotmail.com>

e2e-tests/playwright/support/ui/components/channels/center_view.ts

@@ -11,14 +11,12 @@ export default class ChannelsCenterView {
     readonly container: Locator;
 
     readonly header;
-    readonly headerMobile;
     readonly postCreate;
 
     constructor(container: Locator) {
         this.container = container;
 
         this.header = new components.ChannelsHeader(this.container.locator('.channel-header'));
-        this.headerMobile = new components.ChannelsHeaderMobile(this.container.locator('.navbar'));
         this.postCreate = new components.ChannelsPostCreate(container.getByTestId('post-create'));
     }
 

e2e-tests/playwright/support/ui/components/channels/header_mobile.ts

@@ -1,22 +0,0 @@
-// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
-// See LICENSE.txt for license information.
-
-import {expect, Locator} from '@playwright/test';
-
-export default class ChannelsHeaderMobile {
-    readonly container: Locator;
-
-    constructor(container: Locator) {
-        this.container = container;
-    }
-
-    async toBeVisible() {
-        await expect(this.container).toBeVisible();
-    }
-
-    async toggleSidebar() {
-        await this.container.getByRole('button', {name: 'Toggle sidebar Menu Icon'}).click();
-    }
-}
-
-export {ChannelsHeaderMobile};

e2e-tests/playwright/support/ui/components/index.ts

@@ -2,7 +2,6 @@
 // See LICENSE.txt for license information.
 
 import {ChannelsHeader} from './channels/header';
-import {ChannelsHeaderMobile} from './channels/header_mobile';
 import {ChannelsAppBar} from './channels/app_bar';
 import {ChannelsPostCreate} from './channels/post_create';
 import {ChannelsPost} from './channels/post';
@@ -27,7 +26,6 @@ const components = {
     ChannelsSidebarRight,
     ChannelsAppBar,
     ChannelsHeader,
-    ChannelsHeaderMobile,
     ChannelsPostCreate,
     ChannelsPost,
     FindChannelsModal,
@@ -49,7 +47,6 @@ export {
     ChannelsSidebarRight,
     ChannelsAppBar,
     ChannelsHeader,
-    ChannelsHeaderMobile,
     ChannelsPostCreate,
     ChannelsPost,
     FindChannelsModal,