deep scan: Probe iso information

libvirt only recognizes a storage volume as an iso type if its name
ends with ".iso", otherwise it will be set as raw type.
So adjust the iso link name properly to allow Kimchi probes iso information
(os_distro and os_version) during deep scan

Signed-off-by: Aline Manera <alinefm@br.ibm.com>
Format template and storage pool details

The details of templates and storage pools are displayed unformatted
(e.g. "Memory:1024M" instead of "Memory: 1024M").

Change the details layout so that the text formatting looks better.

Signed-off-by: Crístian Viana <vianac@linux.vnet.ibm.com>
Use "dropdown" CSS class on the Edit Template page

The storage pool combo box on the Edit Template page uses a different
CSS class than the rest of the application.

Make the Edit Template page appearance more consistent by applying the
class "dropdown" to the Storage Pool picker.

Signed-off-by: Crístian Viana <vianac@linux.vnet.ibm.com>