Bug report: Air gapped Install/Compile

**Describe the bug**
Installing/Compiling without internet does not work as I suppose it is intended.

**To Reproduce**
Steps to reproduce the behaviour or a link to the recipe / input used to cause the bug:

1. Clone repo to an Air gapped environment
2. run `npm install --production`
3. run `npx grunt prod`

**Expected behaviour**
A successful build resulting in files under *build/prod/*

**Screenshots**
If applicable, add screenshots to help explain your problem.

**Desktop (if relevant, please complete the following information):**
- OS: Linux/docker
- Browser: N/A
- CyberChef version: 10.4.0

**Additional context**
What happens is that *chromedriver* is beeing pulled from the internet, even tho this is only needed for testing i assume.
`npm install --production` does not work because *grunt* is located in the dev-environment, but still needed to build the files.

I'm guessing that moving *grunt* to the regular dependencies would fix this.

Dockerfile that works, here we remove *chromedriver* while we build, this feels wrong.
```dockerfile
#
# Set baseimage
FROM artifactory.example.org:8443/docker/node:18-alpine3.17 AS build

# Copy certificate
COPY ca-certificates.crt /etc/ssl/certs/ca-certificates.crt

# Copy source-code
COPY src/. /src

# Set working-directory
WORKDIR /src

# Set environment
ENV NODE_OPTIONS="--max-old-space-size=2048"

# Run commands
RUN npm config set cafile /etc/ssl/certs/ca-certificates.crt && \
npm config set registry https://artifactory.example.org:8443/artifactory/api/npm/npm/ && \
npm uninstall -save-dev chromedriver && \
npm install && \
npx grunt prod

#
# Set image for webserver
FROM artifactory.example.org:8443/docker/nginxinc/nginx-unprivileged:1.23-alpine3.17 as web
COPY --from=build /src/build/prod /usr/share/nginx/html
```