docker and package.json broken

It's impossible to run dockerfile with the current package.json, i have tried:

```console
docker run --rm -v "$PWD":/app -w /app node:buster npm install --legacy-peer-deps
docker build -t gatsby-gitbook-starter .
```

I tried to fix dozen errors, but i am tired.

Problem starts with gatsby-plugin-algolia 0.19 and keep going...