refactor: 💡 port confirmation service and components into core

yarn.lock

@@ -8905,6 +8905,14 @@ ember-get-config@0.2.4, ember-get-config@^0.2.2, ember-get-config@^0.2.4:
     broccoli-file-creator "^1.1.1"
     ember-cli-babel "^6.3.0"
 
+ember-get-config@^0.3.0:
+  version "0.3.0"
+  resolved "https://registry.yarnpkg.com/ember-get-config/-/ember-get-config-0.3.0.tgz#a73a1a87b48d9dde4c66a0e52ed5260b8a48cfbd"
+  integrity sha512-0e2pKzwW5lBZ4oJnvu9qHOht4sP1MWz/m3hyz8kpSoMdrlZVf62LDKZ6qfKgy8drcv5YhCMYE6QV7MhnqlrzEQ==
+  dependencies:
+    broccoli-file-creator "^1.1.1"
+    ember-cli-babel "^7.0.0"
+
 "ember-getowner-polyfill@^1.1.0 || ^2.0.0", ember-getowner-polyfill@^2.0.0:
   version "2.2.0"
   resolved "https://registry.yarnpkg.com/ember-getowner-polyfill/-/ember-getowner-polyfill-2.2.0.tgz#38e7dccbcac69d5ec694000329ec0b2be651d2b2"