refactor: migrate to ESM (#7331)

* refactor: move package.json to type: module

this is where the fun begins

* chore: move webpack common and prod to esm

* chore: move webpack to esm, eslint to explicit cjs

* refactor: migrate all files to esm

* style: lint

* refactor: begin moving karma to cjs, use dynamic esm import

* refactor: move index-test to cjs

* refactor: begin moving e2e to ESM

this was manual. I'm committing this because I'm about to try the `cjstoesm` tool

* refactor: move all to esm

* fix: make all e2e tests use .js imports

* refactor: begin moving exports to esm

* refactor: use URL transforms instead of __dirname

* fix: use libraryExport: default to properly handle openmct

* fix: export all playwright configs as modules

* refactor: move all instances of __dirname to import.meta.url

* refactor: lint, drop unnecessary URL call

* fix: use correct URL path on helper/addNoneditableObject.js

* fix: more incorrect URL resolve issues

* fix: parse json after reading it

e2e/tests/functional/plugins/notebook/restrictedNotebook.e2e.spec.js

@@ -20,14 +20,14 @@
  * at runtime from the About dialog for additional information.
  *****************************************************************************/
 
-const { test, expect, streamToString } = require('../../../../pluginFixtures');
-const { openObjectTreeContextMenu } = require('../../../../appActions');
-const {
-  lockPage,
+import { openObjectTreeContextMenu } from '../../../../appActions.js';
+import {
   dragAndDropEmbed,
   enterTextEntry,
+  lockPage,
   startAndAddRestrictedNotebookObject
-} = require('../../../../helper/notebookUtils');
+} from '../../../../helper/notebookUtils.js';
+import { expect, streamToString, test } from '../../../../pluginFixtures.js';
 
 const TEST_TEXT = 'Testing text for entries.';
 const TEST_TEXT_NAME = 'Test Page';