refactor: Convert to ESM

[damianstasik]

New Pull Request Checklist

• I am not disclosing a vulnerability.
• I am creating this PR in reference to an issue.

Issue Description

Related issue: #FILL_THIS_OUT

Pre-flight checklist

• webpack starts and works, all build types work as expected
• babel compiles files properly
• dashboard starts, no errors & no new warnings in the console
• PIG starts, lists all components, everything is interactive as it was
• jest starts, tests complete
• linting does not crash, lints issues if there are any
• bin script still works
• dashboard can be imported as regular module (in a custom express setup)
• semantic release works (blocked by ES Modules semantic-release/semantic-release#2133)
• node version checker works
• code generators do not crash, generates proper & updated code
• no module.exports nor requires in the code
• package-json check works
• circular dependency finder works

Approach

TODOs before merging

• Add tests
• Add changes to documentation (guides, repository pages, in-code descriptions)
• A changelog entry is created automatically using the pull request title (do not manually add a changelog entry)

[parse-github-assistant]

Thanks for opening this pull request!

• ❌ Please fill out all fields with a placeholder FILL_THIS_OUT, otherwise your pull request will be closed. If a field does not apply to the pull request, fill in n/a.

[parse-github-assistant]

I will reformat the title to use the proper commit message syntax.