Router optimized (#2565)

frontend/src/components/main-content-wrapper.js

@@ -0,0 +1,22 @@
+import React, { Fragment } from 'react';
+import GeneralToolBar from './toolbar/general-toolbar';
+
+const MainContentWrapper = (WrapperedComponent) => {
+  return class extends React.Component {
+
+    constructor(props) {
+      super(props);
+    }
+
+    render() {
+      return (
+        <Fragment>
+          <GeneralToolBar {...this.props} />
+          <WrapperedComponent {...this.props} />
+        </Fragment>
+      );
+    }
+  }
+}
+
+export default MainContentWrapper;