QA improve checks

[belgattitude]

I'd like to rework the (dual) packaging if possible. That is a continuation of #1966 (comment).

But before of that, I would like to ensure I have a correct baseline. So I introduced few things

• a github action
• a size-limit script (with webpack to follow possible tree-shakability regressions)
• an ecmascript check (to prevent regressions in the build)

The size-limit might obsolete in bundlesize, I might remove later on.

Locally

npm install
npm run build
npm run check-size
npm run check-dist

Want to analyze the differences in bundles (esm, cjs):

npm run analyze-size

Will open the

We can already see that cjs does not tree-shake. Big opportunity cause by default nextjs will use it rather than esm.

[belgattitude]

this is a draft, I'll focus on this first:

import is es2021.

[belgattitude]

@adrai

I would like to merge this P/R and continue in a short time on different PR's

• Improve exports (esm/cjs) to allow nextjs to actually use the esm one (will reduce bundle size).
• Remove the unused './dist/es' build.

I found out some bugs in the code as well, I'll keep on my todo

[belgattitude]

Ah thanks, you're faster than light 😄

[adrai]

fyi: github actions are failing