message: Fix typo in show_dialog
diff: @@ -352,7 +352,7 @@ impl SpotifyOAuth {
  payload.insert("state", state);
  }
  if show_dialog.is_some() {
  - payload.insert("show_diaload", "true");
  + payload.insert("show_dialog", "true");
  }
  let query_str = convert_map_to_string(&payload);
  