pls make relativeFile / relativeFileDirname variables to work in Docker ENV

[palansher]

Hello!

Would be great to implement variables like in VS Code:

${relativeFile} - the current opened file relative to workspaceFolder
${relativeFileDirname} - the current opened file's dirname relative to workspaceFolder

To run code in docker containers and map local code dir to docker dirictory. vscode Variables Reference

Thank you for great product!