Description of the problem:

Can't type negative numbers in Order field

How reproducible:

100%

Steps to reproduce:

1. Login to web-console

2. Go Compute/NodeHealthChecks - > Create NodeHealthCheck

3. Choose `Use escalating remediations'

4. Choose Order field

5. Type "-2" in Order field

Actual results:

Can't type negative numbers

Expected results:

Can be added negative number via keyboard