3 "high" vulnerabilities, down from 9, upon running 'npm install'

```
added 1315 packages, and audited 1382 packages in 27s

19 vulnerabilities (6 low, 4 moderate, 9 high)

To address issues that do not require attention, run:
  npm audit fix

To address all issues (including breaking changes), run:
  npm audit fix --force

Run `npm audit` for details.
```

After running npm audit fix, I got:
```
9 vulnerabilities (6 low, 3 high)
```