Added support for preserving html comments in generated html output through env value

Created by: ryanmcafee

Added support for preserving html comments in the generated html file to support Enterprise use case of using server side includes with Nginx, Apache, etc.. Verified by setting ENABLE_HTML_COMMENTS to true in .env file and running: npm run build observing that html comments were preserved in build/index.html. Verified by setting ENABLE_HTML_COMMENTS to false in .env file and running: npm run build observing that html comments were removed in build/index.html. Updated advanced configuration documentation with additional configuration option. Preserved existing default behavior as to not impact existing applications.

requested review from @root

requested review from @root

requested review from @root

requested review from @root

requested review from @root

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added CLA Signed label

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Created by: stale[bot]

This pull request has been automatically marked as stale because it has not had any recent activity. It will be closed in 5 days if no further activity occurs.

added stale label

Created by: stale[bot]

This pull request has been automatically closed because it has not had any recent activity. If you have a question or comment, please open a new issue. Thank you for your contribution!

closed