Migrate from webpack to esbuild

[jedahan]

This makes saxi buildable on a raspberry pi zero (webpack OOMs even with 1.5Gb of memory).

This also enables live-reload during development.

This should also speed things up, but i haven't benchmarked it

[jedahan]

There were some merge conflicts I tried to manually resolve in the package-lock.json, but I didn't test them - best to regenerate after merge.

[alexrudd2]

npm run dev
<snip>
npm ERR! Missing script: "serve"
npm ERR!

The line in question is a script in package.json. { "dev": "npm run serve & BUILD_MODE=development npm run build:ui",.

Is this supposed to be npm run build:server or something?

[alexrudd2]

The Typescript downgrade shouldn't be necessary if you upgrade typescript-eslint, since it recently added support for 5.2

typescript-eslint/typescript-eslint#7535

[jedahan]

ahh yeah, I will add the missing serve script and upgrade typescript-eslint

[alexrudd2]

As I commented on the other PR, my intention is to merge all these changes into nornagon/saxi in manageable chunks rather than maintain a fork.

That said, works for me so thanks :)

[alexrudd2]

#98 should be included here