Only use Zone RPC by default instead of Zone and Prime

[jdowning100]

Describe the Feature

99% of users will only ever use the Zone RPC. Therefore, we should support this use case by default. That is, ask Zone for every query unless otherwise specified. There is no reason to ask Prime for listRunningChains at startup as Zone can answer this query with the same response. That way, users only have to expose the Zone RPC port instead of Zone, Region and Prime.

Code Example

No response