vm-rename fix: return domain after static config change

domain instance remains the same after static change,
return it to update the domain.

Signed-off-by: Royce Lv <lvroyce@linux.vnet.ibm.com>
VM Edit UI

Support VM name editing.

  Depends on:
  * [PATCH] vm-rename fix: return domain after static config change

v2 -> v3:
  3a) Display default icon when returning undefined
  3b) Move "Cores" to "CPUs"

Signed-off-by: Hongliang Wang <hlwang@linux.vnet.ibm.com>