[BUG] RemoteConfig should be merged with default config

[bluesign]

Current Behavior

Currently remote config overrides default config, this makes adding config fragile.

Expected Behavior

Remote config should be merged with default config.

Steps To Reproduce

Currently creating new account fails on CLI ( due to lack of flowInitAccountBalance config value )

Environment

- OS: Mac OS
- Node: 
- npm:

What are you currently working on that this is blocking?

No response