placesview: jumps to the default location
placesview: jumps to the default location

When we connect to a server, the default and expected
behavior is going to the default location, which usually
is the home directory or a writable directory.

GtkPlacesSidebar behaves properly, while GtkPlacesView
doesn't.

Fix that by jumping to the default locations instead of
the root location.

davidgumberg/gtk,chergert/gtk,jadahl/gtk,alexlarsson/gtk,davidgumberg/gtk,jadahl/gtk,jigpu/gtk,jadahl/gtk,davidgumberg/gtk,grubersjoe/adwaita,davidgumberg/gtk,davidgumberg/gtk,jigpu/gtk,davidgumberg/gtk,grubersjoe/adwaita,jigpu/gtk,chergert/gtk,alexlarsson/gtk,alexlarsson/gtk,jigpu/gtk,chergert/gtk,alexlarsson/gtk,jigpu/gtk,grubersjoe/adwaita,grubersjoe/adwaita,jadahl/gtk,jadahl/gtk,grubersjoe/adwaita,alexlarsson/gtk,chergert/gtk,davidgumberg/gtk,davidgumberg/gtk,chergert/gtk,alexlarsson/gtk,jadahl/gtk,grubersjoe/adwaita,chergert/gtk,jigpu/gtk,chergert/gtk,grubersjoe/adwaita,jadahl/gtk,alexlarsson/gtk,alexlarsson/gtk,jadahl/gtk,grubersjoe/adwaita,chergert/gtk,jigpu/gtk,jigpu/gtk