message: Fix element losing focus when clicking and empty.
  Placeholder was capturing click events.
diff: @@ -151,6 +151,7 @@ export class ContenteditableDirective implements OnInit, OnChanges, OnDestroy {
  if (!this.placeholderEl) {
  const placeholderText = this.renderer.createText(this.placeholder);
  this.placeholderEl = this.renderer.createElement('span');
  + this.renderer.setStyle(this.placeholderEl, 'pointer-events', 'none');
  this.renderer.appendChild(this.placeholderEl, placeholderText);
  this.renderer.appendChild(this.elementRef.nativeElement, this.placeholderEl);
  }
  