Storage widget. Show disk usage per partition instead of entire disk.

[kem-a]

This is a feature request.

Seeing entire disk usage is not very helpful when disk have multiple partitions, like Windows, Linux, Home, EFI etc. Having per partition usage would be more useful, something similar like gnome-disks have implemented.

[dr-Styki]

Also, disk with LUKS partition is shown as full.

[stsdc]

@dr-Styki please create separate issue for LUKS partitions. Thanks!