TODO

upgrade to Svelte@4
migrate e2e/svelte to Vite (see e2e/svelte/README.md)
cleanup README
add eslint with plugins (svelte, import, promise)
add code coverage https://itnext.io/github-actions-code-coverage-without-third-parties-f1299747064d

Done

~~README~~
- ~~add section about CJS/ESM~~
- ~~v1.x~~
- ~~manual override~~
~~update packages~~
~~update e2e skeletons~~
~~add jest test for choosing of module system~~

Considerations

use different config loader https://github.com/unjs/c12
use different build tool https://github.com/unjs/unbuild
add https://github.com/TrySound/rollup-plugin-terser