* smoke test for web

* fix comments and remove logs

* addressing reviewer comments

* fix analyzer issue

* running the test on cirrus

* cirrus yaml syntax error

* pub get for web_drivers

* go to the examples directory before running the flutter app

* cirrus is not able to find chromedriver. add a sleep to see if timing is the issue.

* run chrome driver in the background

* After PR #51084, flutter drive command can build and run a web app. Clean flutter run command from cirrus.yml

* enable web