Issue #154

[andrewnguyen22]

Description

• RootChainInfo polling is unreliable and resource intensive
• It should allow the nestedChain listeners to have the info quicker and more consistently

Attempts to fix the following:

• RootChain height can be off by 1 (N-1)
• RootChain updates can take > 1 second in worst case situations

Related Issues

Closes: #154

Changes Made

• Changed RootChainInfo retrieval from http polling to websockets pub/sub
• Converted RootChainInfo struct to protobuf for faster marshalling
• Still allow fallback http requests

Checklist

• I have tested the changes locally and verified they work as intended.
• I have appropriately titled my branch issue-#<issue-number>.
• I have run re-built the web-wallet and/or block explorer (if applicable).
• I have run npm run prettier to format the web-wallet and/or block explorer (if applicable)
• I have updated documentation (if applicable).
• I have included tests for the changes (if applicable).

Additional Notes

Still testing - will run in docker soon.

[rem1niscence]

First set of review, most of them are minor clarifications and warnings, so far it looks pretty good! second one coming shortly