* build: initialize JavaScript action project
* chore(dependabot): check for npm package updates
* style: ignore `main` dir and `README.md` from being formatted
* ci: add Build workflow that contains Build Package job
* ci: add Test Package job in the Test workflow
* test: add an empty `main.test.ts` test
* chore: adjust Git attributes for `main/index.mjs` file
* docs(readme): add a build status badge