Fix https://github.com/vector-im/hydrogen-web/issues/686
Fix https://github.com/vector-im/hydrogen-web/issues/682
Instead of deleting the whole `target/` directory, leave it alone so the symlink
driving the `npm link`/`yarn link` stays in tact.
Leave Vite builds in their build directories (`/lib-build`/`/asset-build`)
so you can `vite build --watch` to build on local changes and still have a
consisent place to reference in the `package.json` `exports`. Previously,
everything relied on `build.sh` which does a bunch of moving and renaming
and made it hard to rebuild on changes.
Add back support for CommonJS (adding the `package.json` `exports`).
The last piece is making sure the `?url` imports (`import workerPath from 'hydrogen-view-sdk/main.js?url';`)
work still. It looks like this may have just been solved via
https://github.com/vitejs/vite/issues/6725 -> https://github.com/vitejs/vite/pull/7073
(literally 2 days ago) and we just need to wait for the next Vite release 🎉
