chore: remove type: module, create openmct-e2e subpackage (#7590)

* fix: remove mystery webpack code

* fix: remove type:module and specify exports

- we aren't a module... yet

* fix: rename webpack*.js to webpack*.mjs so we can use import/export. fix imports

* fix: exports format

* fix: woops, need to add `start` script back

* chore: split e2e into its own module

* fix: use normal Painterro import

* fix: update e2e pathing

* fix: copy over helper functions

* chore: specify `cwd` for playwright configs so that openmct npm commands work as intended in any environment

* chore: add pretest script to e2e package.json

* chore: don't package e2e

* refactor: tidy up webpack common config

* chore: compile types to a single file

* chore: fix visual test npm scripts

* chore: fix import pathing

* chore: define package exports, move test specific dependencies to the subpackage

* chore: export test framework from openmct-e2e

* chore: export baseFixtures also

* chore: let `openmct` and `openmct-e2e` share `node_modules/`

* chore: use `--workspace`, remove pretest script

* Revert "fix: remove mystery webpack code"

This reverts commit eb14d52569ffa27ab1a090b883694f4707b59cd0.

* chore: update package-lock

* chore: add `.npmignore`

* fix: *js -> mjs

.webpack/webpack.coverage.mjs

@@ -0,0 +1,32 @@
+/*
+This file extends the webpack.dev.mjs config to add babel istanbul coverage.
+OpenMCT Continuous Integration servers use this configuration to add code coverage
+information to pull requests.
+*/
+
+import config from './webpack.dev.mjs';
+
+config.devtool = 'source-map';
+config.devServer.hot = false;
+
+config.module.rules.push({
+  test: /\.js$/,
+  exclude: /(Spec\.js$)|(node_modules)/,
+  use: {
+    loader: 'babel-loader',
+    options: {
+      retainLines: true,
+      // eslint-disable-next-line no-undef
+      plugins: [
+        [
+          'babel-plugin-istanbul',
+          {
+            extension: ['.js', '.vue']
+          }
+        ]
+      ]
+    }
+  }
+});
+
+export default config;