Build system rework

[matthieusieben]

This is a simpler rework of the build system, replacing my previous attempt (#1941).

Here is what is included in this PR:

• refactor(crypto): remove circular dependency #1942
• Extract common tsconfig into shared tsconfig/common.json and tsconfig/test.json
• Remove all direct access to src from other packages. Every import must be exported by the dependency's index.ts.
• Remove unused babel.config.js files.
• Most packages are no longer bundled. The esbuild + tsc build process has been replaced with a single tsc command. Published packages should be lighter by a factor >= 50%.
• More files are covered by the lint
• Improved linting & type-ckecking of all jest config & test files
• Add "watch" mode build (pnpm dev)
• A few minor adaptations to make things run smoothly
• Narrow types available in packages depending on the target (e.g. remove dom lib from NodeJS only packages)
• Add typings for handlebar templates