The main entrypoint in your package.json is used for Node.js, whereas most bundlers, e.g. webpack, look for the module entrypoint
which allows the users of your npm module to consume it through ES modules.
Most bundlers also don't transpile the node_modules of a project. This means that if a user installs our npm module and we don't transpile it,
their app will break as the browser doesn't understand JSX syntax for example.
This is the reason why we have a build step with babel, to transpile our code, before we publish our npm module.
eslint-plugin-import is really useful for catching importing errors, i.e. files that you import that don't exist.
husky allows you to specify commands to run on a pre-commit hook. So we're currently running lint-staged on pre-commit, which allows us to lint our code through eslint and format it through prettier, ultimately preventing us from pushing bad, unformatted code.