Smart Table Dropdown not Listing Title

### Issue type

**I'm submitting a ...** (check one with "x")

* [x] bug report
* [ ] feature request
* [ ] question about the decisions made in the repository

### Issue description

**Current behavior:**
While trying to attatch dropdown in smart table the value of the dropdown is shown in listing (while clicking edit and adding new its proper)

**Expected behavior:**
The dropdown should be showing title(value is just for internal purpose)

**Steps to reproduce:**
In a smart Table add following code and you can see as from service value comes as 1,2.etc and it is shown in the listiing rather than the title.
Im attatching a screenshot illustrationg the issue

**Related code:**

```
type: {
title: 'type',
type: 'html',
editor: {
type: 'list',
config: {
list: [{title: 'Entry & Exit', value: '1'}, {title: 'Entry Only', value: '2'} , {title: 'Exit Only', value: '3'}]
}
},
},
```