message: matrix collapse/expand icon css
  ref surveyjs/survey-creator#2317
diff: }
  }
  }
  +
  +.sd-table__cell--actions {
  + width: 0;
  +}
  +
  +.sd-table__cell--detail-button {
  + border: none;
  + background: transparent;
  + width: calcSize(4);
  + height: calcSize(4);
  + padding: calcSize(1);
  + svg {
  + width: calcSize(2);
  + height: calcSize(2);
  + fill: $foreground-light;
  + }
  +}
  +
  .sd-table__cell--actions {
  white-space: nowrap;
  .sv-action-bar {
  