test(filtering): Trying to fix flickering tests #5652

Author: astaev

projects/igniteui-angular/src/lib/grids/grid/grid-filtering-ui.spec.ts

@@ -4980,8 +4980,8 @@ describe('IgxGrid - Filtering actions - Excel style filtering #grid', () => {
 
             // Click 'sort asc' button in ESF.
             GridFunctions.clickExcelFilterIcon(fix, 'Downloads');
-            await wait(100);
             fix.detectChanges();
+            await wait(400);
             GridFunctions.clickSortAscInExcelStyleFiltering(fix);
             await wait(100);
             fix.detectChanges();
@@ -5018,8 +5018,8 @@ describe('IgxGrid - Filtering actions - Excel style filtering #grid', () => {
 
             // Click 'sort desc' button in ESF.
             GridFunctions.clickExcelFilterIcon(fix, 'Downloads');
-            await wait(100);
             fix.detectChanges();
+            await wait(400);
             GridFunctions.clickSortDescInExcelStyleFiltering(fix);
             await wait(100);
             fix.detectChanges();