message: Update docs
  I noticed some strange message in the docs. This could describe better what is going on :+1:
diff: @@ -148,8 +148,7 @@ export class BsModalService {
  this.backdropRef = null;
  }
  - /** AFTER PR MERGE MODAL.COMPONENT WILL BE USING THIS CODE */
  - /** Scroll bar tricks */
  + /** Checks if the body is overflowing and sets scrollbar width */
  /** @internal */
  checkScrollbar(): void {
  this.isBodyOverflowing = document.body.clientWidth < window.innerWidth;
  