Pin the registry at the prod Robinhood subgraph (#2899)

## Summary
- Point the webapp `REGISTRY_URL` and the API `DEFAULT_REGISTRY_URL` at rain.strategies `92b33dc` ([#139](rainlanguage/rain.strategies#139)).
- That registry commit pins settings whose Robinhood subgraph is `raindex-robinhood/prod`.

## Test plan
- [x] Both pins are `https://raw.githubusercontent.com/rainlanguage/rain.strategies/92b33dc485d891069ae9e2cae2d363609d88b256/registry`
- [x] That registry's settings commit uses `https://api.subgraph.ormilabs.com/api/public/9f4fc2fa-4a15-44f7-a7c1-66fdaa518a71/subgraphs/raindex-robinhood/prod/gn`
- [x] `_meta` on that URL returns a block and `hasIndexingErrors: false`

<!-- This is an auto-generated comment: release notes by coderabbit.ai -->

<!-- coderabbit-ai-generated:v1 -->

## Summary by CodeRabbit

- **Updates**
  - Updated the default registry reference to a newer pinned version.
  - The web app and REST API now use the same updated registry source.
  - Registry-backed content and configuration may reflect the newer registry revision.

<!-- end of auto-generated comment: release notes by coderabbit.ai -->

Author: Siddharth2207

crates/rest_api/src/config.rs

@@ -1,6 +1,6 @@
 use std::path::PathBuf;
 
-pub const DEFAULT_REGISTRY_URL: &str = "https://raw.githubusercontent.com/rainlanguage/rain.strategies/a5fafa4d75aff23ba705dd9e2ba2bb3a472431b3/registry";
+pub const DEFAULT_REGISTRY_URL: &str = "https://raw.githubusercontent.com/rainlanguage/rain.strategies/e189647e34e865fc62ee78720a8bd7a3d199270f/registry";
 
 #[derive(Debug, Clone, PartialEq, Eq)]
 pub struct Config {

packages/webapp/src/lib/constants.ts

@@ -1,2 +1,2 @@
 export const REGISTRY_URL =
-  "https://raw.githubusercontent.com/rainlanguage/rain.strategies/a5fafa4d75aff23ba705dd9e2ba2bb3a472431b3/registry";
+  "https://raw.githubusercontent.com/rainlanguage/rain.strategies/e189647e34e865fc62ee78720a8bd7a3d199270f/registry";