chore(deps): update example dependencies to v19

Author: renovate[bot]

example/package.json

@@ -18,16 +18,16 @@
     "@sanity/vision": "^3.42.1",
     "next": "^14.2.3",
     "next-sanity": "^9.0.20",
-    "react": "^18.3.1",
-    "react-dom": "^18.3.1",
+    "react": "^19.0.0",
+    "react-dom": "^19.0.0",
     "sanity": "^3.42.1",
     "sanity-plugin-mux-input": "^2.3.0",
     "styled-components": "^6.1.11"
   },
   "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": "^5.7.2"
   }
 }

package.json

@@ -77,8 +77,8 @@
     "@sanity/semantic-release-preset": "^5.0.0",
     "@sanity/vision": "^3.68.1",
     "@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",
     "@types/styled-components": "^5.1.34",
     "@typescript-eslint/eslint-plugin": "^7.18.0",
     "@typescript-eslint/parser": "^7.18.0",
@@ -95,9 +95,9 @@
     "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",
     "rimraf": "^5.0.7",
     "sanity": "^3.68.1",
     "semantic-release": "^24.2.0",
@@ -106,8 +106,8 @@
     "yalc": "1.0.0-pre.53"
   },
   "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"
   },