Add a simple upload/download traffic indicator for menu bar

[adasbera]

Is there an existing issue for this?

• I have searched the existing issues.

Describe the solution you'd like

I would like to suggest adding a simple upload/download traffic indicator for menu bar.

Is your feature request related to a problem?

No

[GyulyVGC]

Thanks @adasbera for the feature request.

I'll keep this in my backlog, but being Sniffnet a cross-platform app, figuring out to do this with the Iced library on Windows, Linux, and macOS might not be straightforward