Fix worker paths and add missing filename

[MonicaOlejniczak]

Motivation

When migrating to TypeScript, all of the worker paths break due to the change in extension. Additionally, the babel dependency in the eslint plugin changes slightly and requires a filename in the tests.

Changes

• Resolve worker paths without an extension
• Use a public export name for the worker paths using the development condition
• Add filename to eslint parser

Checklist

• Existing or new tests cover this change

[yamadapc]

awesome