Support accounts on different networks and ecosystems

### Overview

Currently, Ledger assumes Ethereum.
We can track the network information in the keyfile (much like we do in the `ape-starknet` plugin) and then use that ecosystem when decoding the address.

### Specification

Describe the syntax and semantics of how you would like to see this feature implemented. The more detailed the better!

Remember, your feature is much more likely to be included if it does not involve any breaking changes.

### Dependencies

Include links to any open issues that must be resolved before this feature can be implemented.