yarn e2e doesn't auto-reload JS code changes

[mifi]

Initial checklist

• I understand this is a bug report and questions should be posted in the Community Forum
• I searched issues and couldn’t find anything (or linked relevant results below)

Link to runnable example

No response

Steps to reproduce

• yarn e2e
• Make a change in a file, e.g. add a console.log in a hot codepath in Uppy.ts
• Start a test

Expected behavior

The change should reflect in the e2e

Actual behavior

Old code is still running. This is problematic because every time you make a change it prints out this:

⠙ Building Uppy.js...
✨ Built in 234ms

...making you believe that the code has reloaded, however it has not, so you'll waste time trying to debug your code. re-running yarn e2e is also problematic because it takes a long time

same goes for yarn dev:with-companion but maybe not such a big deal because it can be quickly restarted