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/framework/pluginFixtures.e2e.spec.js

@@ -25,7 +25,7 @@ This test suite is dedicated to testing our use of our custom fixtures to verify
 that they are working as expected.
 */
 
-const { test } = require('../../pluginFixtures.js');
+import { test } from '../../pluginFixtures.js';
 
 // eslint-disable-next-line playwright/no-skipped-test
 test.describe.skip('pluginFixtures tests', () => {