Fixed OverlayPanel containing component

Fixes case when a component is present inside the OverlayPanel. After a low number of clicks inside the OverlayPanel it hid randomically.

src/app/components/overlaypanel/overlaypanel.ts

@@ -229,7 +229,7 @@ export class OverlayPanel implements AfterContentInit, OnDestroy {
                 const documentTarget: any = this.el ? this.el.nativeElement.ownerDocument : this.document;
 
                 this.documentClickListener = this.renderer.listen(documentTarget, documentEvent, (event) => {
-                    if (!this.container?.contains(event.target) && !this.target.contains(event.target)) {
+                    if (!this.container?.contains(event.target) && this.target !== event.target && !this.target.contains(event.target)) {
                         this.hide();
                     }