Menu: Datacenter --> Storage --> Add

[mipsH]

Hello.

I have a one small proposal for changing the Storage drop down menu on: Datacenter ==> Storage --> Add.
In the current state we have all the storage types in one place, no matter if they are: local, NAS, SAN or other types.

For the older and advanced users this is not an issue, but for the new ones it will be nice to have some granularity in the menu like.
Optional proposal for: Storage --> Add menu:


=====================
Local:
--------------
Directory
LVM
LVM-Thin
BTRFS
ZFS
...
============
NAS:
---------------
NFS
SMB/CIFS
GlusterFS
CephFS
...
============
SAN:
-----------
iSCSI
RBD
...
============
External:
-------------
Proxmox Backup Server
ESXi
=====================

Best Regards.