Remove toyfile dependency and fix CI dependencies

.gitlab-ci.yml

@@ -27,6 +27,7 @@ jsbuild:
   stage: jsbuild
   when: manual
   image: node:12
+  allowed_failure: false
 
   script:
     - cd uhepp-js

uhepp-js/src/index.js

@@ -7,7 +7,6 @@ import 'bootstrap'
 import Header from './components/Header.jsx';
 import Graph from './components/Graph.jsx';
 import About from './components/About.jsx';
-import toy_data from './SR_VBF_lh_mmc.json';
 
 import React from "react";
 import ReactDOM from "react-dom";