While working on ZBX-28033, we noticed that the 'Result' field doesn't show ellipsis in the end of the outputed long truncated string.

Steps to reproduce:

1. Create host item with item key: system.run[head -c 1000 /dev/zero | tr '\0' 'A']
2. Go to Item. Click Test
3. Click "Get value and test" button

Result:

1000 character string doesn't have an ellipsis at the end in the input field.

Expected:
Ellipsis must appear for any string that is longer than the input available width.