next.js

91144461 - Revert "chore(examples): migrate mdx from pages router (JS) to app router (TS)" (#63704)

Revert "chore(examples): migrate mdx from pages router (JS) to app router (TS)" (#63704) Reverts vercel/next.js#63646 The example changes are missing a bunch of stuff: - Types are not added, you can see the changes required here: https://github.com/vercel/next.js/pull/63703 - Dependencies are missing, i.e. `@types/react` `@types/node`, `typescript` are all missing. Reverting as CI is broken.