message: Fix mac debug shortcut.
diff: {
  "command": "dotnet.test.debugTestsInContext",
  "key": "ctrl+r ctrl+t",
  - "mac": "cmd+r ctrl+t",
  + "mac": "cmd+r cmd+t",
  "when": "editorLangId == csharp && editorTextFocus"
  }
  ],
  