activity: get social Actions, improve reactivity

src/Bundle/ChillActivityBundle/Resources/public/vuejs/Activity/api.js

@@ -0,0 +1,18 @@
+import { getSocialIssues } from 'ChillPersonAssets/vuejs/AccompanyingCourse/api.js';
+
+/*
+*  Load socialActions by socialIssue (id)
+*/
+const getSocialActionByIssue = (id) => { 
+   const url = `/api/1.0/person/social/social-action/by-social-issue/${id}.json`;
+   return fetch(url)
+      .then(response => {
+         if (response.ok) { return response.json(); }
+         throw Error('Error with request resource response'); 
+      });
+};
+
+export {
+   getSocialIssues,
+   getSocialActionByIssue
+};