Update update sanity and add react-is to fix dev mode

Author: kenjonespizza

studio/package.json

@@ -15,10 +15,11 @@
     "sanity"
   ],
   "dependencies": {
-    "@sanity/vision": "^3.77.0",
+    "@sanity/vision": "^3.91.0",
     "react": "^19.0.0",
     "react-dom": "^19.0.0",
-    "sanity": "^3.77.0",
+    "react-is": "^19.1.0",
+    "sanity": "^3.91.0",
     "styled-components": "^6.1.13"
   },
   "devDependencies": {