Release preparation v1.148

[Alexey]

Yes, it has more details in expense of a reduced legend, see

@elek

There are too many categories (trash, reserved, reclaimable, etc.). Doesn’t fit easily on the right side. Instead I tried to add categories only to doughnut (move mouse over the two blue parts. There should be tool tips).

Trash represents the trash which couldn’t be deleted, yet.

“dead bytes” are called “reclaimable”, and counted as a separated category, as they can be deleted immediately.