Vertical resizer breaks the crud example

[thdoan]

I'm not sure whether this is a Webix issue or an issue with the example crud code, but I will post it here for the record. Steps to reproduce:

1. Add { view: 'resizer' }, between lines 89 and 90 in crud.js to add a vertical resizer line between the data table and the filtered list.
2. Drag the vertical resizer line left and right.

ISSUE: You will see that eventually both the toolbar and the data table will not resize correctly as you drag the vertical resizer line.