mgr/dashboard: Fixes table suite test

This tests sometimes fails if all suites are run, it seems like the
window events had been thrown away at a certain point in that
case. I'm not sure why and when this happens, as running the suite or
the test singly succeed. That said the window object is somehow kept
more globally than it should be in Jest.

Signed-off-by: Stephan Müller <smueller@suse.com>

src/pybind/mgr/dashboard/frontend/src/app/shared/datatable/table/table.component.spec.ts

@@ -80,7 +80,7 @@ describe('TableComponent', () => {
   });
 
   it('should prevent propagation of mouseenter event', (done) => {
-    fixture.detectChanges();
+    component.ngOnInit();
     const mouseEvent = new MouseEvent('mouseenter');
     mouseEvent.stopPropagation = () => done();
     fixture.debugElement.nativeElement.dispatchEvent(mouseEvent);