chore(deps): update example dependencies to v19

Author: renovate[bot]

example/package.json

@@ -18,16 +18,16 @@
     "@sanity/vision": "^3.74.0",
     "next": "^14.2.3",
     "next-sanity": "^9.8.51",
-    "react": "^18.3.1",
-    "react-dom": "^18.3.1",
+    "react": "^19.0.0",
+    "react-dom": "^19.0.0",
     "sanity": "^3.74.0",
     "sanity-plugin-mux-input": "^2.4.1",
     "styled-components": "^6.1.14"
   },
   "devDependencies": {
     "@types/node": "^20.12.12",
-    "@types/react": "^18.3.17",
-    "@types/react-dom": "^18.3.5",
+    "@types/react": "^19.0.8",
+    "@types/react-dom": "^19.0.3",
     "typescript": "5.7.3"
   }
 }

package.json

@@ -76,8 +76,8 @@
     "@sanity/semantic-release-preset": "^5.0.0",
     "@sanity/vision": "^3.74.0",
     "@types/lodash": "^4.17.13",
-    "@types/react": "^18.3.17",
-    "@types/react-is": "^18.3.1",
+    "@types/react": "^19.0.8",
+    "@types/react-is": "^19.0.0",
     "@typescript-eslint/eslint-plugin": "^7.18.0",
     "@typescript-eslint/parser": "^7.18.0",
     "eslint": "^8.57.1",
@@ -93,17 +93,17 @@
     "npm-run-all2": "^5.0.2",
     "prettier": "^3.4.2",
     "prettier-plugin-packagejson": "^2.5.6",
-    "react": "^18.3.1",
-    "react-dom": "^18.3.1",
-    "react-is": "^18.3.1",
+    "react": "^19.0.0",
+    "react-dom": "^19.0.0",
+    "react-is": "^19.0.0",
     "sanity": "^3.74.0",
     "semantic-release": "^24.2.0",
     "styled-components": "^6.1.13",
     "typescript": "5.7.3"
   },
   "peerDependencies": {
-    "react": "^18",
-    "react-is": "^18",
+    "react": "^18 || ^19.0.0",
+    "react-is": "^18 || ^19.0.0",
     "sanity": "^3.42.0",
     "styled-components": "^5 || ^6"
   },