## 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
- Fixes `with-webassembly` example unable to build with the current
`next.config.js`.
https://github.com/vercel/next.js/issues/29362#issuecomment-932767530
- Converted example to TypeScript
```js
// Before
config.output.webassemblyModuleFilename = 'static/wasm/[modulehash].wasm'
// After
config.output.webassemblyModuleFilename =
isServer && !dev
? '../static/wasm/[modulehash].wasm'
: 'static/wasm/[modulehash].wasm'
```
```
> Build error occurred
Error: Export encountered errors on following paths:
/
at /Users/max/dev/next.js/examples/with-webassembly/node_modules/next/dist/export/index.js:408:19
at process.processTicksAndRejections (node:internal/process/task_queues:95:5)
at async Span.traceAsyncFn (/Users/max/dev/next.js/examples/with-webassembly/node_modules/next/dist/trace/trace.js:79:20)
at async /Users/max/dev/next.js/examples/with-webassembly/node_modules/next/dist/build/index.js:1342:21
at async Span.traceAsyncFn (/Users/max/dev/next.js/examples/with-webassembly/node_modules/next/dist/trace/trace.js:79:20)
at async /Users/max/dev/next.js/examples/with-webassembly/node_modules/next/dist/build/index.js:1202:17
at async Span.traceAsyncFn (/Users/max/dev/next.js/examples/with-webassembly/node_modules/next/dist/trace/trace.js:79:20)
at async Object.build [as default] (/Users/max/dev/next.js/examples/with-webassembly/node_modules/next/dist/build/index.js:65:29)
ELIFECYCLE Command failed with exit code 1.
```
## 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)