Restructure omni services and add Chatwoot research snapshot

research/chatwoot/app/javascript/dashboard/api/yearInReview.js

@@ -0,0 +1,16 @@
+/* global axios */
+import ApiClient from './ApiClient';
+
+class YearInReviewAPI extends ApiClient {
+  constructor() {
+    super('year_in_review', { accountScoped: true, apiVersion: 'v2' });
+  }
+
+  get(year) {
+    return axios.get(`${this.url}`, {
+      params: { year },
+    });
+  }
+}
+
+export default new YearInReviewAPI();