fix(404 page): fix seo

src/pages/404.js

@@ -1,12 +1,17 @@
 import  React from "react"
 import { Link } from "gatsby"
 
+import Seo from "../components/seo"
+
 import "../css/base.css"
 
 const NotFoundPage = () => {
   return (
     <>
-      <title>Not found</title>
+      <Seo
+        title="Not found"
+      />
+
       <h1>Page not found</h1>
       <p>
         Sorry we couldn’t find what you were looking for.

src/pages/index.js

@@ -1,6 +1,6 @@
 import React from "react"
 import { Link } from "gatsby"
-import { NotificationContainer } from 'react-notifications'
+import { NotificationContainer } from "react-notifications"
 
 import Seo from "../components/seo"