Error is thrown when changing the tables(data of the grid) in using workbooks sample from Excel Library

[dkamburov]

1. Open https://www.infragistics.com/products/ignite-ui-angular/angular/components/excel-library-using-workbooks#angular-using-workbooks-example
2. Inspect the console

Note that changing the table also triggers that error:

chunk-JH7H4IL3.js:7 ERROR TypeError: Cannot read properties of undefined (reading 'data')