Description

This MR fixes #2056 by providing a default config when no explicit config is used. The reason is that we now expect a default config to attach properties on PyScript side that can be read out of the box but because the editor is a bootstrap a part that config needed to be normalized and that's what happens in here.

Changes

• if no config is explicitly provided, attach an empty literal as env config to the editor
• test that both Pyodide and MicroPython actually do work as expected

Checklist

• All tests pass locally
• I have updated CHANGELOG.md
• I have created documentation for this(if applicable)