React + Streaming gRPC Queries

[ejmg]

Summary

core gRPC endpoints, such as penumbra.core.component.dex.v1.QueryService.LiquidityPositions, are liable to have incredibly large payloads that impact query load times and trigger timeouts on the client. Handling these requests in a streaming-friendly way with React would improve this drastically.

[ejmg]

This will theoretically not be an issue with the new custom indexer stuff (#148 #176)

[ejmg]

In might be useful to still integrate some grpc endpoints against a popular penumbra node(s) for live network data but the specific use-case of pulling data for validators, governance events, and staking are no longer relevant due to the custom indexers being rolled.