## Description
This PR ensures that the default prettier config is used for examples
and templates.
This config is compatible with `prettier@3` as well (upgrading prettier
is bigger change that can be a future PR).
## Changes
- Updated `.prettierrc.json` in root with `"trailingComma": "es5"` (will
be needed upgrading to prettier@3)
- Added `examples/.prettierrc.json` with default config (this will
change every example)
- Added `packages/create-next-app/templates/.prettierrc.json` with
default config (this will change every template)
## Related
- Fixes#54402
- Closes#54409
Converted three more examples to TypeScript.
Changes to individual examples pushed as separate commits.
## Documentation / Examples
- [X] Make sure the linting passes by running `pnpm build && pnpm lint`
- [X] The "examples guidelines" are followed from [our contributing doc](https://github.com/vercel/next.js/blob/canary/contributing/examples/adding-examples.md)
* Added with-mqtt-js example
* Fixed eslint/prettier errors
* Update README.md
* Updated with-mqtt-js to latest next/react versions, WIP: Refactoring useMqtt()
* A2PC
* Working example, unrefactored
* A2PC
* Ran prettier
* Used NEXT_PUBLIC_ prefix instead of keys as props
* Updated readme and added .env.local.example
Co-authored-by: Sebastian König <sebastian_koenig@cotyinc.com>
Co-authored-by: Luis Alvarez D <luis@vercel.com>
