Missing pieces for new WebSocket URIs

[schnogz]

Description

• Add all coin WebSocket URIs to default configuration for Express server.
• Log all coin WebSocket configurations when Webpack and Express server starts.
• Updates code coverage badge url to point to development branch

Change Type

Bug Fix, CI/CD

Testing Steps

N/A

PR Creator Checklist

• Code compiles correctly
• No lint issues exist (verified via yarn lint)
• All unit tests pass (verified via yarn test)
• Updated README.md and other documentation (if necessary)

PR Reviewer Checklist

• Change validated and application spot checked
• Code styles and best practices met
• Code is readable and commented when necessary

[salomegeo]

Is this all that was missing?

Do you think I might have made a mistake but adding configs and it would've been better to have this hacked in the code?

In general, do you think we can make it easier to change configs in future? I think this is worth considering, not sure if it's a priority right now.

[plondon]

I added some others yesterday: #386 and https://github.com/blockchain/blockchain-wallet-v4-frontend/pull/387/files. And a CI change was necessary. I think its okay to change things in wallet-options-v4.json generally, but we should be careful about anything the domains object, because that requires a few changes in different places.