Update Dependencies - chokidar & mocha

[TheGreatAxios]

Fixes vulnerabilities in packages:

• mocha
• chokidar

[patricknelson]

This is a great little server; anyone have a fork of this that's actually being maintained? 🤔

[patricknelson]

Oops, never mind! Found a great fork here: https://github.com/ljcp/alive-server

Looks like alive-server installs a bit more quickly and no deprecation warnings upon install. Probably has less dependencies too (newer version of chokidar, etc).