Consider adding programs in Thumbnail mode and notifications info for threshold exceeded

[GyulyVGC]

Thumbnail mode only show the most relevant network hosts and services, but we should add the option to also show programs.

The same also applies to the addition info visible when expanding a notification for data threshold exceeded.

In both cases the available graphical space is limited, so we should come up with a solution that allows also showing programs without taking away too much space from the currently showed items.