As part of ZBXNEXT-9850, field validation error texts were changed, but the old error descriptions remained in the graph controller.

Steps to reproduce:

1. Navigate to the host graph list,
2. Click on 'Create graph' button,
3. Put incorrect values to fields,
4. Try to save your graph,
5. Switch to 'Preview' tab,
6. Compare error messages.

Result:

Expected:
Should see same error messages in preview and configuration form.