Add system total network traffic count and TCP connections count

[Muska-Ami]

Maybe we need a total traffic count and TCP connections count data like:

Note: The TCP connections also can be a chart.(I think maybe it would be more intuitive as a chart? :D)

[scriptzteam]

+1
but also UDP would be great

[Mark-2445]

I love the idea of having bandwidth usage on the dashboard, it would be really good if it would calculate bandwidth usage based upon the current timeframe (1h, 12h , 24h etc)