feat: Adds the ability to edit article (#5232)

app/javascript/dashboard/api/helpCenter/articles.js

@@ -21,6 +21,17 @@ class ArticlesAPI extends PortalsAPI {
     if (category_slug) baseUrl += `&category_slug=${category_slug}`;
     return axios.get(baseUrl);
   }
+
+  getArticle({ id, portalSlug }) {
+    return axios.get(`${this.url}/${portalSlug}/articles/${id}`);
+  }
+
+  updateArticle({ portalSlug, articleId, articleObj }) {
+    return axios.patch(
+      `${this.url}/${portalSlug}/articles/${articleId}`,
+      articleObj
+    );
+  }
 }
 
 export default new ArticlesAPI();