fix(pkg): drop stale typings dir from published files

After the Flow→TS migration, typings/ holds only the type-compat test (test.tsx + tsconfig.json) — the shipped declarations moved to build/cjs/ (referenced by types/exports). The files array still listed "typings", so npm pack bundled those test artifacts into the published tarball. Drop it; types still ship via build/. Verified npm pack --dry-run no longer includes typings/.

Author: STRML

package.json

@@ -27,8 +27,7 @@
     "typecheck": "tsc --noEmit"
   },
   "files": [
-    "build",
-    "typings"
+    "build"
   ],
   "typings": "./build/cjs/cjs.d.ts",
   "types": "./build/cjs/cjs.d.ts",
@@ -97,4 +96,4 @@
     "react": ">= 16.3.0",
     "react-dom": ">= 16.3.0"
   }
-}
+}