Fix typings

Author: lukemelia

package.json

@@ -58,6 +58,8 @@
     "@glint/environment-ember-template-imports": "^1.5.2",
     "@glint/template": "^1.6.2",
     "@release-it-plugins/lerna-changelog": "^8.0.1",
+    "@types/ember__application": "^4.0.11",
+    "@types/ember__runloop": "^4.0.10",
     "@typescript-eslint/eslint-plugin": "^8.46.2",
     "@typescript-eslint/parser": "^8.46.2",
     "broccoli-asset-rev": "^3.0.0",