fix(grid): do not select column when click filter icon #7408

Author: nrobakova

projects/igniteui-angular/src/lib/grids/headers/grid-header.component.ts

@@ -183,6 +183,7 @@ export class IgxGridHeaderComponent implements DoCheck, OnInit, OnDestroy {
 
 
     public onFilteringIconClick(event) {
+        event.stopPropagation();
         this.grid.filteringService.toggleFilterDropdown(this.elementRef.nativeElement, this.column, IgxGridExcelStyleFilteringComponent);
     }