Essentially the same as in PBS, but needed to use 'rootfs' instead of
'root' for the disk usage, avoid 'cpu' as an itemId (already used by
the cluster resources), and get rid of the fingerprint button. Also
added the link to the repositories panel like in Dominik's pending
patch for PBS.
Rename the existing resources panel to clarify what it actually is.
Signed-off-by: Fabian Ebner <f.ebner@proxmox.com>
