Enable CORS for locally served bookmarklet

Trying to run the bookmarklet without CORS creates errors in the boot strip of the bookmarklet, keeping it from being able to connect to the Ember application that you want to inspect.

Adding `ember-cli-cors` fixes this.

Author: pichfl

package.json

@@ -10,7 +10,7 @@
     "test": "tests"
   },
   "scripts": {
-    "build":"pnpm build:ember-debug && ember build",
+    "build": "pnpm build:ember-debug && ember build",
     "build:ember-debug": "pnpm --filter ember-debug build",
     "build:production": "pnpm build:ember-debug && EMBER_ENV=production node scripts/download-panes.js && ember build --environment production && gulp compress:chrome && gulp compress:firefox && gulp clean-tmp",
     "changelog": "github_changelog_generator -u emberjs -p ember-inspector --since-tag v3.8.0",
@@ -90,6 +90,7 @@
     "ember-cli-babel": "^8.2.0",
     "ember-cli-clean-css": "^3.0.0",
     "ember-cli-code-coverage": "^1.0.3",
+    "ember-cli-cors": "^0.0.2",
     "ember-cli-dependency-checker": "^3.3.3",
     "ember-cli-deprecation-workflow": "^2.2.0",
     "ember-cli-htmlbars": "^6.3.0",