Update to React 18.2 to match Dash 3.0.0

Author: ndrezn

{{cookiecutter.project_shortname}}/package.json

@@ -44,9 +44,9 @@
     "eslint-plugin-import": "^2.18.0",
     "eslint-plugin-react": "^7.14.2",
     "prop-types": "^15.8.1",
-    "react": "^16.8.6",
+    "react": "^18.2.0",
     "react-docgen": "^5.4.3",
-    "react-dom": "^16.8.6",
+    "react-dom": "^18.2.0",
     "style-loader": "^3.3.3",
     "styled-jsx": "^3.2.1",
     "webpack": "^5.84.1",