Give the option to allow viewing network by interface rather than only showing grouped data

[ClementTsang]

Describe the feature request

Why should we consider this feature request? Describe why, and/or how you think this feature will solve the issue, or overall improve the application:

Currently we grab networks and sum them together as a lump sum. RX, TX, etc. are all a summation of all interfaces.

We also already grab that data, we just toss away the individual data when we collect it and merge it all together.

This would be a config/flag feature. Toggling within app might also be possible but eh, then we would have to collect and save both total and separate data.

Additional context/details

Provide any additional context or details here. What needs to be done, why, etc:

[xgdgsc]

Is it hard to also add per process sorting of network usage?

[ClementTsang]

@xgdgsc might be tricky to get network usage per-process, would need to look into it.