new PageTitle component to have each page the same title

src/elements/PageTitle/PageTitle.test.js

@@ -0,0 +1,12 @@
+import React from 'react';
+import {shallow} from 'enzyme'
+
+import PageTitle from "./PageTitle";
+
+describe('<Preview/>', function () {
+    it('renders without crashing ', function () {
+        const wrapper = shallow(<PageTitle/>);
+        wrapper.unmount();
+    });
+});
+