feat: cache custom attributes in IDB

app/javascript/dashboard/api/attributes.js

@@ -1,13 +1,27 @@
-/* global axios */
-import ApiClient from './ApiClient';
+import CacheEnabledApiClient from './CacheEnabledApiClient';
 
-class AttributeAPI extends ApiClient {
+class AttributeAPI extends CacheEnabledApiClient {
   constructor() {
     super('custom_attribute_definitions', { accountScoped: true });
   }
 
+  // eslint-disable-next-line class-methods-use-this
+  get cacheModelName() {
+    return 'custom_attribute_definition';
+  }
+
+  // eslint-disable-next-line class-methods-use-this
+  extractDataFromResponse(response) {
+    return response.data;
+  }
+
+  // eslint-disable-next-line class-methods-use-this
+  marshallData(dataToParse) {
+    return { data: dataToParse };
+  }
+
   getAttributesByModel() {
-    return axios.get(this.url);
+    return super.get(true);
   }
 }