added 260907 version of worker toolkit

worker-toolkit-flaredown/repo/frontend/app/mixins/user-nameable.js

@@ -0,0 +1,18 @@
+import Ember from 'ember';
+
+const {
+  computed: {
+    alias
+  },
+  inject: {
+    service
+  },
+  Mixin,
+} = Ember;
+
+export default Mixin.create({
+  session: service('session'),
+  dataStore: service('store'),
+
+  screenName: alias('session.actualUser.profile.screenName'),
+});