Confusing UI change between 2.17 and 3.7

### Describe the bug

Inbetween version changes, it seems like the rendering logic for request bodies changed a little bit. In the following two screenshots, you see the exact same request being made, but being rendered differently:

### 2.17:

### 3.7:

I think the new version is a bit confusing, since it makes the request body look like it's a `FormData`, and not a `JSON`. It caused some headache for me and my coworkers :D

### Reactotron version

3.7.0

Compare the request-body rendering shown in the 2.17 and 3.7 screenshots, then trace the desktop UI code responsible for displaying request bodies. Done means a JSON request body is clearly presented as JSON rather than appearing to be FormData.

Written by the indexing model from the issue text.