Restructure omni services and add Chatwoot research snapshot

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

@@ -0,0 +1,14 @@
+import CacheEnabledApiClient from './CacheEnabledApiClient';
+
+class LabelsAPI extends CacheEnabledApiClient {
+  constructor() {
+    super('labels', { accountScoped: true });
+  }
+
+  // eslint-disable-next-line class-methods-use-this
+  get cacheModelName() {
+    return 'label';
+  }
+}
+
+export default new LabelsAPI();