Add peer dependency for React 18 in visually-hidden package (#953)

Author: cassidoo

packages/visually-hidden/package.json

@@ -21,8 +21,8 @@
     "react-dom": "^17.0.2"
   },
   "peerDependencies": {
-    "react": "^16.8.0 || 17.x",
-    "react-dom": "^16.8.0 || 17.x"
+    "react": "^16.8.0 || 17.x || 18.x",
+    "react-dom": "^16.8.0 || 17.x || 18.x"
   },
   "main": "dist/reach-visually-hidden.cjs.js",
   "module": "dist/reach-visually-hidden.esm.js",