support URLSearchParams as data

[d3bgger]

axios supports passing a URLSearchParams object as data, when you need a post with "application/x-www-form-urlencoded".
curlirize prints an empty data object in the console.

[ericzon]

I think is more or less related with this, in Nodejs v12.13.0 sending json in params field appears like this:

...
"curlCommand": "curl -X GET -H \"Authorization:Bearer xxxx\" \"http://localhost:3000/api/api-path?createdAt=[object Object]
...