Multiple/split/combined disk usage on dashboard

On the dashboard you show the main OS drive stats. However if we mount docker onto a different volume there is no visibility. Combining is nice but can hide problems and multiple can make it busy. Might be best to show the highest perc disk - and add a down/dropdown to change. That way if a drive starts hitting 90%, you will know. You can also expand and do some logic - like if you see the docker dir is mounted to a diff drive you can show a name/note Docker Disk If a storage location is direct on a disk, you can use that storage name.