fix Netlify bug with "styled-jsx" SSR upon clicking on horizontal car…

…ousel anchor link

Runtime.ImportModuleError - Error: Cannot find module 'styled-jsx/style'

upgrade Next.js to latest (v14) per https://answers.netlify.com/t/error-cannot-find-module-styled-jsx-style/104563/11

tracked here also: opennextjs/opennextjs-netlify#2330

package.json

@@ -13,7 +13,7 @@
     "@mdx-js/react": "^3.0.0",
     "@next/mdx": "^14.0.3",
     "lottie-react": "^2.4.0",
-    "next": "13.5.6",
+    "next": "14.0.3",
     "react": "18.2.0",
     "react-dom": "18.2.0",
     "styletron-engine-atomic": "^1.6.2",