Single Chain Path Configuration

[TheGreatAxios]

Is your feature request related to a problem? Please describe.
Currently, the proxy is setup in a way where the default path is <ip-address/url>/v1/. This makes sense when used with multiple chains.

Describe the solution you'd like
If only a single chain is setup to use within the proxy (see #44 ) then the path to access the proxy does not necessarily need to include the chain name.

Describe alternatives you've considered
Developers could potentially tinker with the nginx.config, however, at a minimum this would require a bit of guidance

Additional context
This is a convenience feature request

[TheGreatAxios]

Update
Goals:

1. Allow a single chain to be selected and configured
2. Make it easier to have this set at https://rpc..tld or wss://rpc..tld