Publish to OpenVSX

[motdotla]

The extension is not avilable for coder/code-server VSCode Web .
Probably it is also not available on other web IDEs like GithHub Codespace or Gitpod.
The extension can still be installed via VSIX file but make it available on those IDEs.

publish to https://open-vsx.org/

[motdotla]

Process started here: EclipseFdn/open-vsx.org#1250

Notes: https://github.com/eclipse/openvsx/wiki/Namespace-Access#how-to-claim-a-namespace

[motdotla]

Additional notes:

https://coder.com/docs/code-server/latest/FAQ#how-do-i-install-an-extension

https://github.com/orgs/dotenv-org/discussions/95#discussioncomment-3706987