Correctly parse "+"-encoded url query params

[Ansile]

https://stackoverflow.com/questions/1634271/url-encoding-the-space-character-or-20/1634293#:~:text=A%20space%20may%20only%20be,it%20is%20encoded%20as%20%20.

Space character in url query parameters may be encoded as '+' and URLSearchParams does encode it that way -

That should be supported by query parsing in this library too.