Publish to OpenVSX

[akosyakov]

Unfortunately, MS prohibits the usage of MS marketplace by any other products or redistribution vsix files from it. Because of it we kindly ask you to take ownership of your namespace in OpenVSX and publish it there as well.

OpenVSX is a vendor-neutral alternative to MS marketplace used by all other derivatives of VS Code like Gitpod, OpenVSCode, VSCodium, Theia based IDEs, and so on.

The docs for publishing the extension are here. Technically this should be straightforward. You get a token and call ovsx publish with it. For example, this is how RedHat publishes their java extension.

Let me know if you are open to a PR contributing release GH action both to MS marketplace and OpenVSX. You can find an example of such action here.