allow react 18 (#311)

Author: nikgraf

packages/hypergraph-react/package.json

@@ -25,7 +25,7 @@
   },
   "peerDependencies": {
     "@graphprotocol/hypergraph": "workspace:*",
-    "react": "^19.1.0"
+    "react": "^18.0.0 || ^19.0.0"
   },
   "devDependencies": {
     "@graphprotocol/hypergraph": "workspace:*",