Suggestion: automate versioning, changelog and npm release

Instead of handling those manually, we could have an automated workflow that, once tests pass:

- Builds a version (dist files)
- Tags a version and push the tag on GitHub
- Increments the version and push the build to npm
- Writes an entry in the changelog

Suggested tooling: https://frontstuff.io/setup-for-an-open-source-javascript-project

The issue names no files, tests, or existing entry points. Start by mapping the current test, build, version, changelog, and npm-release process, then compare it with the suggested tooling; done means the full workflow runs after tests pass and performs each listed release step.

Written by the indexing model from the issue text.