Support for multi-line .env files

[CedricVandelaer]

In several projects I encounter environment variables that span several lines. This is not a problem for Docker or other software, but VS Code currently does not support .env variables across multiple lines.

So for example:
MY_ENV_VAR='{
"key": "value"
}'

Is not supported. This is quite annoying for development.

[github-actions]

Thanks for the feature request! We are going to give the community 60 days from when this issue was created to provide 7 👍 upvotes on the opening comment to gauge general interest in this idea. If there's enough upvotes then we will consider this feature request in our future planning. If there's unfortunately not enough upvotes then we will close this issue.

[karrtikr]

We plan to use the official dotenv syntax long term #20003, and given it supports this scenario it should be addressed with it. Closing in favor of #20003.