[Suggestion] Remember file tree for requests

[Davincible]

Still thanks a lot for implementing my last feature request. I came up with another feature that I would love to see.

When comparing the responses of a single endpoint, I tend to have some nodes expanded, ans some collapsed. If the plugin would remember which nodes are collapsed, and which are expanded, for a single endpoint per project, it would make comparing responses a lot easier as you don't need to manually collapse the nodes according to what you'd like. And maybe its nice to add a setting with this that would let you dictate the behavior. E.g. only save the node modes for this specific request, or save it of every response of this endpoint.

Let me know if this is possible to implement, thanks a lot for your work!