Toggle comment command wrong shortcut [macOS]

[goshander]

Same issue as #294
But for macOS and CMD key

  {
    "key": "cmd+[Slash]",
    "command": "editor.action.commentLine",
    "when": "editorTextFocus && !editorReadonly"
  },
  {
    "key": "cmd+/",
    "command": "-editor.action.commentLine",
    "when": "editorTextFocus && !editorReadonly"
  }

[kasecato]

Keep this layout as it is because it would not support Dvorak keyboard layout if key position is enforced by [slash]

ref. #307 (comment)