[OpenSearch Playground] Add Google analytics to playground

[BionIT]

Is your feature request related to a problem?

Enabling Google Analytics to playground will help gathering information about the traffic, user behaviors, etc, all of which would help understanding user and to further improve the user experience

What solution would you like?

Enable Google analytics to playground

What alternatives have you considered?

No

Do you have any additional context?

#87 was covered by this one as well.

• create github action workflow to allow overriding image with designed final state and use existing helm chart just with different image and test
• modify osd helm chart to expose entry point to install plugins and allow change permissions and push to helm chart repo and test - this can be a PR in the osd helm chart repo

[seraphjiang]

https://github.com/BionIT/google-analytics-plugin

[BionIT]

PR for workflow(task 1) is #91
PR for osd helm chart improvement(task 2) is pending review: opensearch-project/helm-charts#342