Fix "Open in app" when URL is based on path and contains encoded characters

Following NXP-24824, when opening in the browser a doc link based on the path and clicking on "Open in app" from the login page, we should now be redirected to the document.
For instance with http://localhost:8080/nuxeo/ui/#!/browse/default-domain/workspaces/Test%20WS

Yet the app fails to fetch the document since the repository.fetch call encodes the path which results in a path encoded twice, in this case /Test%2520WS.

=> We need to decode the docRef and repositoryName passed in the URL.