Publish un-bundled transpiled esm modules #243
Description
When installing Lottie Player as an npm dependency, it brings in pre-bundled versions of the Lottie and the tgs players. These pre-bundled files contain their own copy of the lit library. If a consumer app also uses the lit library, it will end up with two copies of lit.
To eliminate code duplication, one possible solution would be to list lit as a dependency in package.json and also provide the unbundled transpiled/minified files for consumption in projects that have their own build process which involves a bundler.