message: Change to work with latest frontend lib
diff: @@ -56,8 +56,8 @@ export class AppActivityFeed extends Vue {
  private scroll$: Subscription | undefined;
  mounted() {
  - this.scroll$ = Scroll.scrollChanges.sampleTime(ScrollSampleTime).subscribe(() => {
  - const { top, height } = Scroll.getScrollChange();
  + this.scroll$ = Scroll.watcher.changes.sampleTime(ScrollSampleTime).subscribe(() => {
  + const { top, height } = Scroll.watcher.getScrollChange();
  this.scroll = top;
  // Auto-loading while scrolling.
  