'noDefaultExtensions' config option is not respected

[luber]

Describe the bug
When 'noDefaultExtensions' config option is set to true - the editor still loads default extensions.

To Reproduce
Steps to reproduce the behavior:

1. Edit src/editor/index.html and change noDefaultExtensions parameter to true:

svgEditor.setConfig({
          allowInitialUserOverride: true,
          extensions: [],
          noDefaultExtensions: **true**, // <-- this changed to true
          userExtensions: [/* { pathName: './react-extensions/react-test/dist/react-test.js' } */]
        });

2. npm start
3. See that default extensions are still loaded

Expected behavior
If noDefaultExtensions is set to true - default extensions must not be loaded. The editor should load only those extensions that are listed in the config extensions property. E.g. this config:

svgEditor.setConfig({
          allowInitialUserOverride: true,
          noDefaultExtensions: true,
          extensions: [
            'ext-panning',
            'ext-eyedropper'
          ]
        });

should load 'ext-panning' and 'ext-eyedropper' extensions only.

SVG-Edit environment (IMPORTANT)

• File for SVG-Edit: index.html
• Version: 7.3.0
• Protocol: http

Desktop (please complete the following information):

• OS: MacOS
• Browser Chrome
• Version 108.0.5359.94