chore(*): override prop+change custom summary label

Author: onlyexeption

projects/igniteui-angular/src/lib/test-utils/grid-samples.spec.ts

@@ -733,7 +733,7 @@ export class ReorderedColumnsComponent extends BasicGridComponent {
     template: GridTemplateStrings.declareBasicGridWithColumns(ColumnDefinitions.simpleDatePercentColumns)
 })
 export class GridUserMeetingDataComponent extends BasicGridComponent {
-    public data = SampleTestData.personMeetingData();
+    public override data = SampleTestData.personMeetingData();
 }
 
 @Component({

src/app/grid-export/grid-export.sample.ts

@@ -16,7 +16,7 @@ class GridSummary {
         const result = new IgxNumberSummaryOperand().operate(data);
         result.push({
             key: 'test',
-            label: 'Test',
+            label: 'Custom summary',
             summaryResult: data.filter((rec) => rec > 10 && rec < 30).length
         });