VS Code does not focus on the right editor

GhostText just created a tab in a minimized workspace and then brought the whole app to focus (with the AppleScript command)

There must be a better way than this:

https://github.com/fregante/GhostText-for-VSCode/blob/b24b0bb98117302685906772ecfbd0a7aea45f6a/source/extension.ts#L42-L46

Last attempt:

- https://github.com/fregante/GhostText-for-VSCode/pull/6

This is because GhostText runs once per workspace, so the minimized one was the one that was running the server:

- https://github.com/fregante/GhostText/issues/275

Possible solution:

- Use `vscode.workspace.workspaceFolders` to find the front-most workspace maybe