message: Recognise "super" as modifier, not final key
  This is what Linux sees when you press the cmd/windows key.
  There isn't a single key, but different ones for left and right.
diff: @@ -98,7 +98,9 @@ export class KeyRecord {
  Key.Key_Meta,
  Key.Key_Alt,
  Key.Key_AltGr,
  - Key.Key_CapsLock
  + Key.Key_CapsLock,
  + Key.Key_Super_L,
  + Key.Key_Super_R,
  ].includes(key);
  }
  }
  