This improves the UI for the password auth box by using an inline icon
for showing/hiding the password text. This is the UI pattern uses by
GNOME shell and other GTK applications.
The two svg files added here are copied from the GTK4 codebase which
is under the LGPLv2+.
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
The USB SVG was mistakenly installed into a size specific dir, while the
main logo was not installed at all.
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>