message: refactor: disable rect memo by default
  It's still experimental
diff: @@ -236,7 +236,7 @@ function _getDefaultConfig() {
  qssaPageSel: true,
  /** should standalone panel memo position and dimension on close */
  - qssaRectMemo: true,
  + qssaRectMemo: false,
  /** browser action panel preload source */
  baPreload: 'clipboard' as PreloadSource,
  