use react in settings

src/settings/index.jsx

@@ -0,0 +1,18 @@
+import React from 'react';
+import ReactDOM from 'react-dom';
+import SettingsComponent from './components';
+import reducer from 'settings/reducers/setting';
+import Provider from 'shared/store/provider';
+import { createStore } from 'shared/store';
+
+const store = createStore(reducer);
+
+document.addEventListener('DOMContentLoaded', () => {
+  let wrapper = document.getElementById('vimvixen-settings');
+  ReactDOM.render(
+    <Provider store={store}>
+      <SettingsComponent />
+    </Provider>,
+    wrapper
+  );
+});