Warnings from npm when installing dependencies

After the merge of #57, there are now a few warnings when installing the dependencies which should be addressed:
```
npm warn deprecated yaeti@0.0.6: Package no longer supported. Contact Support at
https://www.npmjs.com/support for more info.
npm warn deprecated @react-hookz/deep-equal@1.0.4: Package is deprecated and will be deleted
soon. Use @ver0/deep-equal instead.
npm warn deprecated three-mesh-bvh@0.7.8: Deprecated due to three.js version incompatibility.
Please use v0.8.0, instead.
```

as well as a few vulnerabilities that look like they need addressing:
```
added 236 packages, and audited 755 packages in 20s

178 packages are looking for funding
run `npm fund` for details

11 vulnerabilities (2 moderate, 6 high, 3 critical)

To address issues that do not require attention, run:
npm audit fix

Some issues need review, and may require choosing
a different dependency.

Run `npm audit` for details.
```