Adds a package that allows Emacs to searching through a projects
node_modules executables when resolving a binary like eslint, prettier
etc. This was being hacked together before by relying on explicit paths
to executables. This is a more durable solution.
Also includes some packages related to LSP for Javascript, which I
haven't been able to get working yet.
Finally ported my up-to-date emacs configuration here. I was putting
this off for a long while, unsure of how to handle all of the work. All
it took was my laptop being fried to force me to do this. So... voila!
