The ionic react build currently fails with:
```
$ react-scripts build
09:06:23.084 | Creating an optimized production build...
09:06:45.231 | Failed to compile.
09:06:45.231 |
09:06:45.232 | /vercel/path0/node_modules/@types/babel__traverse/index.d.ts
09:06:45.232 | TypeScript error in /vercel/path0/node_modules/@types/babel__traverse/index.d.ts(314,13):
09:06:45.232 | Type expected. TS1110
09:06:45.232 |
09:06:45.232 | 312 \| // too complex for TS. So we type it as a general visitor only if the key contains `\|`
09:06:45.232 | 313 \| // this is good enough for non-visitor traverse options e.g. `noScope`
09:06:45.232 | > 314 \| [k: `${string}\|${string}`]: VisitNode<S, Node>;
09:06:45.232 | \| ^
09:06:45.232 | 315 \| };
09:06:45.232 | 316 \|
09:06:45.232 | 317 \| export type VisitNode<S, P extends Node> = VisitNodeFunction<S, P> \| VisitNodeObject<S, P>;
09:06:45.232
```
Upgrading to TypeScript 4 fixes the issue.
---------
Co-authored-by: Trek Glowacki <trek.glowacki@vercel.com>
* Add yarn.lock to all examples
* Add missing yarn lock
* Deploy all examples after yarn.lock changes
* Remove package-lock
* Update ionic angular to working version
* Skip libCheck to make ionic-angular build
* Rename nowignore to vercelignore, remove yarn.lock from ignore
* Revert zola changes
