- Search wasn't working as we were using wrong row-index, while
  rendering it.
- Fixed the CSS issue with the alignment of the search input box.
- Pass the row object while rendering the 'DataRow' component, to
  improve the performance as it was calling the filtering function
  repeatedly for each row.
- Changed the order of the validators on a field to priortize the
  'empty' string validator over the unique-id validator in a
  collection.