feat: Adds the ability to create a new article (#5255)

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

@@ -32,6 +32,16 @@ class ArticlesAPI extends PortalsAPI {
       articleObj
     );
   }
+
+  createArticle({ portalSlug, articleObj }) {
+    const { content, title, author_id, category_id } = articleObj;
+    return axios.post(`${this.url}/${portalSlug}/articles`, {
+      content,
+      title,
+      author_id,
+      category_id,
+    });
+  }
 }
 
 export default new ArticlesAPI();