update app.js

@@ -3,6 +3,7 @@ import { gql } from "apollo-boost";
 import { useQuery } from "react-apollo-hooks";
 import { ThemeProvider } from "styled-components";
 import GlobalStyles from "../Styles/GlobalStyles";
+import Helmet from "./Helmet";
 import Theme from "../Styles/Theme";
 import Router from "../Routes/Router";
 
@@ -21,6 +22,7 @@ export default () => {
     <ThemeProvider theme={Theme}>
       <>
         <GlobalStyles />
+        <Helmet />
         <Router isLoggedIn={isLoggedIn} />
       </>
     </ThemeProvider>