Persist pathname when updating location

[Danieltech99]

Before this fork, an update to url parameters (through the set method or anything that triggered apply) would strip the path of the url to the root. This is because location-bar expects a path as well as the parameters. Now update includes the current location pathname.

Relevant location-bar documentation: https://github.com/KidkArolis/location-bar#example-usage

[mattias-sanfridsson]

Nice one @Danieltech99. I'll take a look asap!