[feature] Edit query parameters.

[tshirtman]

Thanks for this great project!

I might have missed something but i can’t find it either in the user guide, the inline help, or in issues.

Adding or deleting a query parameter is easy enough in the Request->Query tab (by default ctrl-o e), but to edit a query parameter, i don’t see any other solution than deleting the previous key/value pair, then typing them both again in the field at the bottom.
An action to delete the key/value pair but populate the key/value fields with the current value would potentially save heaps of time, especially when importing an openapi.json gave us all the query parameters pre-populated with default values.

The same action would probably apply to the Headers/Body/Auth panels too.