cannot import postman environment

### Expected Behavior

able to import postman environment

### Actual Behavior

cannot import postman environment

### Reproduction Steps

export postman envrionment as json
if you attempt to import in insomnia in current collection => nothing scanned and nothing imported
if you attempt to import in insomnia in new collection => environment is scanned, but nothing imported

### Is there an existing issue for this?

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

### Additional Information

_No response_

### Insomnia Version

2023.2.2

### What operating system are you using?

Windows

### Operating System Version

Win 11

### Installation method

standard install

### Last Known Working Insomnia version

_No response_

Start by reproducing the import with a Postman environment exported as JSON, using both an existing and a new Insomnia collection on Windows. Trace the environment import flow and compare what is scanned with what is persisted. Done means the variables are imported into both collection contexts.

Written by the indexing model from the issue text.