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/.ci/dashboard.entrypoint.sh

@@ -7,14 +7,14 @@ npm install
 MIGRATION_ATTEMPTS_LEFT=10
 MIGRATION_ATTEMPTS_INTERVAL=10
 until npm run migrate:latest; do
-	MIGRATION_ATTEMPTS_LEFT=$((MIGRATION_ATTEMPTS_LEFT - 1))
-	[ "$MIGRATION_ATTEMPTS_LEFT" -gt 0 ] || break
-	echo "Migration script failed, sleeping $MIGRATION_ATTEMPTS_INTERVAL"
-	sleep $MIGRATION_ATTEMPTS_INTERVAL
+  MIGRATION_ATTEMPTS_LEFT=$((MIGRATION_ATTEMPTS_LEFT - 1))
+  [ "$MIGRATION_ATTEMPTS_LEFT" -gt 0 ] || break
+  echo "Migration script failed, sleeping $MIGRATION_ATTEMPTS_INTERVAL"
+  sleep $MIGRATION_ATTEMPTS_INTERVAL
 done
 [ "$MIGRATION_ATTEMPTS_LEFT" -gt 0 ] || {
-	echo "Migration script failed, exhausted attempts. Giving up."
-	exit 1
+  echo "Migration script failed, exhausted attempts. Giving up."
+  exit 1
 }
 
 # Launch the dashboard