In JSON Preview counting the content in collapsed root property is missing

### Expected Behavior

This is about the JSON preview for API responses.

If you collapse a property, Insomnia shows the number of properties or array items, which are inside. This is a great feature.

It is expected, that this count number shows up for the root node as well, if I collapse it.

### Actual Behavior

Counting the content is not working for root node, only for the others:


### Reproduction Steps

1. Do a request on API, which returns a complex JSON object
2. Go to response Preview
3. Collapse the root node

Actually, it is the same for JSON Bodies in the HTTP request

### Is there an existing issue for this?

- [x] I have searched the [issue tracker](https://www.github.com/Kong/insomnia/issues) for this problem.

### Which sync method do you use?

- [ ] Git sync.
- [ ] Insomnia Cloud sync.
- [ ] Local only

### Additional Information

_No response_

### Insomnia Version

11.0.2

### What operating system are you using?

Windows

### Operating System Version

Windows 10 Enterprise 22H2

### Installation method

Implicit updates

### Last Known Working Insomnia version

_No response_

Start by reproducing the issue in the JSON Preview after making a request that returns a complex JSON object, then compare collapsing the root node with collapsing nested properties. Check the corresponding JSON body view in HTTP requests as well; done means the root node displays its property or array-item count in both contexts.

Written by the indexing model from the issue text.