Convert from CJS only to ESM or Hybrid

[jmrossy]

Restructure core dist so factories are tree-shakeable

enables tree shaking of all the ABIs, deployers, and utils that apps (like the warp UI) don't actually use. And more broadly, CJS is being deprecated.

Revamp libraries in ESM so that integrating for partners is a better experience, so that their bundlers can discard unused packages

All SDK users will pull in 850Kb of factories, 200kb of which are for Test

[yorhodes]

maybe deployer code should be in a different package

[jmrossy]

maybe deployer code should be in a different package

@yorhodes Yes that's a good idea, but it won't help much unless we also update the TS output module target to ESM (from commonJS). The CLI already uses the ESM, we'd want to do the same for all the others

[jmrossy]

Possibly blocked by NomicFoundation/hardhat#3385

[jmrossy]

Copied from #2553, which is closed as duplicate:

The build settings for the monorepo JS packages don't support tree-shaking, which how bundlers drop code apps don't use. Meaning every consumer of the utils/core/sdk packages will bundle every lib we use, every contract factory, and all our code into their app, even if they don't use parts of it. Currently our bundle contribution is 1.5Mb plus all our transitive lib deps. Not horrible, but problematic as we start adding libs for more protocols. To fix this we'd need to change our TS and package.json settings to produce more modern build output.
Requirements

Builds output both commonJS and ES6 module output
Package.json files are updated to properly reference the different types
The output libs work with most popular bundlers/frameworks including webpack 5, rollup, next.js, esbuild, etc.
Test projects are created to ensure the libs work and don't regress

[jmrossy]

Semi-related: cosmos/cosmjs#904 (comment)