Jake Gordon

## Overview This PR ensures that existing environment variables take priority over those inside the `.env` file, this allows us to override the `.env` file values with command line values,...

The `esbuild_deno_loader` assumes that NPM packages are in a deno cache sub folder named `registry.npmjs.org` - ([see hard coded value here](https://github.com/lucacasonato/esbuild_deno_loader/blob/ccd8992c690deee821d6b7a7efeaf599722c394c/src/loader_native.ts#L109)) Unfortunately this assumption breaks now that Deno supports private...