feat: Simplified builder, add exports configs to packages

[rossbulat]

This pull request introduces significant improvements to the build process and package configurations within the w3ux-library. The key changes include:

• Simplified Build Process: Streamlined the builder to enhance efficiency and maintainability, resulting in a reduction of 631 lines of code and an addition of 272 lines.
• Added Exports Configurations: Implemented exports fields in the package.json files of packages to better define entry points and improve compatibility with modern module resolution.

[Copilot]

Copilot reviewed 36 out of 43 changed files in this pull request and generated 1 comment.

Files not reviewed (7)

• library/crypto/exports.config.json: Language not supported
• library/crypto/package.json: Language not supported
• library/factories/exports.config.json: Language not supported
• library/factories/package.json: Language not supported
• library/hooks/exports.config.json: Language not supported
• library/hooks/package.json: Language not supported
• library/observables-connect/exports.config.json: Language not supported