Feature: Website SDK (#653)

Add SDK functions

Co-authored-by: Sojan <sojan@pepalo.com>

app/javascript/widget/api/conversationLabels.js

@@ -0,0 +1,12 @@
+import { API } from 'widget/helpers/axios';
+
+const buildUrl = endPoint => `/api/v1/${endPoint}${window.location.search}`;
+
+export default {
+  create(label) {
+    return API.post(buildUrl('widget/labels'), { label });
+  },
+  destroy(label) {
+    return API.delete(buildUrl(`widget/labels/${label}`));
+  },
+};