🤔 [ISSUE] - quick reply block empty response message

### Description

We can notice that the current Quick reply can be saved with an empty response message. 

### Reproduction steps

```bash
1. Go to visual Editor
2. Create a Quick reply block
3. Make empty the response message from the third tab named Message
4. Save
5. Observe the issue
```

### Logs

```bash

```

### Browsers

_No response_

### OS

_No response_