Description of problem:
There is no Edit option when selecting a disk in disk tab - It's only possible to edit a disk inside the "Edit Virtual Machine" window.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. Log in the engine
2. In the left panel tabs, go to Storage -> Disks
3. Select a disk (and/or click in a disk to open its details)
No Edit option neither when selecting a disk among the many available nor when opening the details of the selected disk.
Have the Edit option either when selecting a disk among the many available or when opening the details of the selected disk.