chore(*): Add debounce time to master detail test.

Author: skrustev

projects/igniteui-angular/src/lib/grids/grid/grid.master-detail.spec.ts

@@ -187,7 +187,7 @@ describe('IgxGrid Master Detail #grid', () => {
             fix.detectChanges();
 
             GridFunctions.toggleMasterRow(fix, grid.rowList.last);
-            await wait();
+            await wait(DEBOUNCETIME);
             fix.detectChanges();
 
             const lastRowDetail = GridFunctions.getMasterRowDetail(grid.rowList.last);
@@ -589,6 +589,8 @@ describe('IgxGrid Master Detail #grid', () => {
             GridFunctions.simulateCellKeydown(targetCellElement, 'End', false, false, true);
             await wait(DEBOUNCETIME);
             fix.detectChanges();
+            await wait(DEBOUNCETIME);
+            fix.detectChanges();
 
             const lastRow = grid.getRowByIndex(52);
             expect(lastRow).not.toBeUndefined();