Personal fork of this pr for dance with additional features

Custom additional features:

• Space menu
• Surround add, surround replace, surround delete
• ]d and [d for jumping to diagnostics

To install:

npm run vscode:prepublish
npm run package:pre
npm run package-helix:pre

note to self: Install the dance vcix first, then the dance-helix-keybindings otherwise will not work