chore: npm update & remove fs-extra dev dep (#596)

## Overview / Related

Clean up dependencies since #595.

## Related

- polish #595
- test assumption from sitepark/fractality#438

## Changes

- deleted `fs-extra` as dev dep
- synced lockfile via `npm update`

## Testing

1. `npm ci`
2. `npm build`
3. `npm start`
4. No errors.
5. UI works.

## UI

Skipped.

Author: wesleyboar