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

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

e2e-tests/playwright/playwright.config.ts

@@ -17,9 +17,10 @@ export default defineConfig({
     workers: testConfig.workers,
     expect: {
         timeout: duration.ten_sec,
-        toMatchSnapshot: {
+        toHaveScreenshot: {
             threshold: 0.4,
             maxDiffPixelRatio: 0.0001,
+            animations: 'disabled',
         },
     },
     use: {