[Feature]: Add "live traffic" support

[jonbarrow]

Checked Existing

• I have checked the repository for duplicate issues.

What feature do you want to see added?

Add the ability to capture live traffic, much like WireShark and other proxy tools like Fiddler and Charles, and display the captured packets as they flow in.

Why do you want to have this feature?

Seeing the effects of in-game actions on network traffic is incredibly useful. We can already somewhat do this by using multiple tools, but this becomes rather cumbersome and requires jumping between multiple applications and manually keeping track of what packets did what in game.

This is less useful now that Nintendo Network is shut down, but could still be useful for capturing Switch traffic.

Any other details to share? (OPTIONAL)

No response