Fix legacy build

The build process failed because webpack does not allow failed imports
when it is run as a module.
This detects modules with default exports and only generates import
statements for default exports where they are available.

config/jsdoc/info/conf.json

@@ -11,8 +11,9 @@
     },
     "plugins": [
         "jsdoc-plugin-typescript",
-        "config/jsdoc/info/define-plugin.cjs",
-        "config/jsdoc/info/virtual-plugin.cjs"
+        "config/jsdoc/plugins/define-plugin.cjs",
+        "config/jsdoc/plugins/virtual-plugin.cjs",
+        "config/jsdoc/plugins/default-export.cjs"
     ],
     "typescript": {
       "moduleRoot": "src"