Build plugin Packages

Prepares the package.json by removing all unnecessary fields and copying it to the out folder of esbuild, so the built package can be published directly.

The plugin copies files to the esbuild out folder, ensuring that all required files are included alongside the built code.

The plugin enhances the build process by seamlessly integrating TypeScript, offering powerful features like type checking, automatic generation of .d.ts files, and ensuring robust type safety throughout.

By deleting the out folder before each new build, the plugin ensures a clean output directory for the build process.