HAI Optimism tweaks

[pi0neerpat]

There are two remaining tasks to enable our SDK to work seamlessly with HAI on Optimism. Please address the following items, using branch add-optimism-hai

1. src/virtual/virtualAnalyticsData.ts has a call vault721.totalSupply to fetch the total number of vaults. This is incompatible, since HAI does not have a vault721 contract. Will need to research how they are fetching total vaults and implement a switch statement to use the other method when on Optimism.
2. src/geb.ts has a call to check if a user has a proxy. We updated our PROXY_REGISTRY and renamed the function from proxies to getProxy. Update the function getProxyAction to properly call proxyRegistry.proxies when on Optimism.

To test the results, run the app on Optimism from branch optimism-hai. Don't forget to yarn link the sdk and build.

Once this issue is completed, I can update the bot to support HAI, and also deploy a second interface for HAI using our od-app 🎉

Resources:

https://solidity-by-example.org/

[pi0neerpat]

Done!