tried to address linting issues

webapp/views/components/Header.js

@@ -1,10 +1,9 @@
 import { h } from 'preact';
-import { Link } from 'preact-router';
 
-export default function () {
+export default function() {
     return (
         <header className="header">
-        <h1>PDFer</h1>
+            <h1>PDFer</h1>
         </header>
     )
 }