Migrate remaining QA selectors to testid

What does this MR do and why?

As per task gitlab-org/quality/quality-engineering/team-tasks#1822 (closed) - migrating data-qa-selector attributes to be data-testid, this MR migrates the remaining data-qa-selector attributes that haven't already been migrated.

MR acceptance checklist

Please evaluate this MR against the MR acceptance checklist. It helps you analyze changes to reduce risks in quality, performance, reliability, security, and maintainability.

How to set up and validate locally

Run an affected spec, eg. from qa directory:

CHROME_HEADLESS=false bundle exec bin/qa Test::Instance::All http://gdk.test:3000/ ./qa/specs/features/ee/browser_ui/10_govern/policies_list_spec.rb

Check the test pipelines