chore(react): add next package entrypoint

Author: maxprilutskiy

packages/react/package.json

@@ -7,7 +7,8 @@
   "exports": {
     ".": "./build/index.js",
     "./client": "./build/client/index.js",
-    "./server": "./build/server/index.js"
+    "./server": "./build/server/index.js",
+    "./next": "./build/next/index.js"
   },
   "types": "build/index.d.ts",
   "files": [