Show username in note breadcrumb if request.user != author
Show username in note breadcrumb if request.user != author

Fixes: https://bugzilla.gnome.org/show_bug.cgi?id=625231

jaredjennings/snowy,widox/snowy,NoUsername/PrivateNotesExperimental,leonhandreke/snowy,jaredjennings/snowy,sandyarmstrong/snowy,syskill/snowy,GNOME/snowy,sandyarmstrong/snowy,NoUsername/PrivateNotesExperimental,syskill/snowy,GNOME/snowy,jaredjennings/snowy,leonhandreke/snowy,jaredjennings/snowy,widox/snowy