DEV: Use this.site.get("notification_types") instead.

Follow up to fcb7422213.

test/javascripts/fixtures/concerns/notification-types.js.es6.erb

@@ -0,0 +1 @@
+export const NOTIFICATION_TYPES = <%= Notification.types.to_json %>;

test/javascripts/fixtures/notification_fixtures.js.es6

@@ -1,15 +1,12 @@
 /*jshint maxlen:10000000 */
-import {
-  LIKED_CONSOLIDATED_TYPE,
-  REPLIED_TYPE
-} from "discourse/widgets/concerns/notification-types";
+import { NOTIFICATION_TYPES } from "fixtures/concerns/notification-types";
 
 export default {
   "/notifications": {
     notifications: [
       {
         id: 123,
-        notification_type: REPLIED_TYPE,
+        notification_type: NOTIFICATION_TYPES.replied,
         read: false,
         post_number: 2,
         topic_id: 1234,
@@ -18,7 +15,7 @@ export default {
       },
       {
         id: 456,
-        notification_type: LIKED_CONSOLIDATED_TYPE,
+        notification_type: NOTIFICATION_TYPES.liked_consolidated,
         read: false,
         data: { display_username: "aquaman", count: "5" }
       }

test/javascripts/fixtures/site-fixtures.js.es6

@@ -1,4 +1,4 @@
-import { LIKED_CONSOLIDATED_TYPE } from "discourse/widgets/concerns/notification-types";
+import { NOTIFICATION_TYPES } from "fixtures/concerns/notification-types";
 
 export default {
   "site.json": {
@@ -6,21 +6,7 @@ export default {
       default_archetype: "regular",
       disabled_plugins: [],
       shared_drafts_category_id: 24,
-      notification_types: {
-        mentioned: 1,
-        replied: 2,
-        quoted: 3,
-        edited: 4,
-        liked: 5,
-        private_message: 6,
-        invited_to_private_message: 7,
-        invitee_accepted: 8,
-        posted: 9,
-        moved_post: 10,
-        linked: 11,
-        granted_badge: 12,
-        liked_consolidated: LIKED_CONSOLIDATED_TYPE
-      },
+      notification_types: NOTIFICATION_TYPES,
       post_types: {
         regular: 1,
         moderator_action: 2,