Fixing eslint warnings

frontend/src/components/page/index.tsx

 import Page from 'components/page/page'
 
-export { Page }
+export default { Page }

frontend/src/index.tsx

@@ -8,8 +8,8 @@ import 'i18n'
 import getTheme from 'themes'
 import GlobalStyle from 'globalStyles'
 import App from 'routes'
-import reportWebVitals from './reportWebVitals'
 import Loading from 'components/loading'
+import reportWebVitals from './reportWebVitals'
 
 function appRoot() {
   return (

frontend/src/routes/index.tsx

@@ -10,6 +10,7 @@ import FrontPage from 'routes/frontpage'
 import Footer from 'routes/components/footer'
 import Header from 'routes/components/header'
 import NotFound from 'routes/components/notFound'
+import Link from '../components/link'
 
 const AppWrapper = styled.div`
   display: flex;
@@ -37,6 +38,12 @@ export default function App() {
           <NotFound />
         </Route>
       </Switch>
+
+      <Link to='test@example.org' mail>Mail link</Link>
+      <Link to='test4' external underline noExternalIcon>Internal link</Link>
+      <Link to='test6' external underline noUnderline>External link</Link>
+      <Link to='test5' external noUnderline>Another internal link</Link>
+
       <Footer />
     </AppWrapper>
   )

frontend/src/routes/register/index.tsx

 import React from 'react'
 
-import { Page } from 'components/page'
+import Page from 'components/page'
 
 export default function Register() {
   return (

frontend/src/setupProxy.js

 const { createProxyMiddleware } = require('http-proxy-middleware')
 
-module.exports = function (app) {
+module.exports = (app) => {
   app.use(
     '/api',
     createProxyMiddleware({

frontend/src/test-utils.tsx

@@ -5,9 +5,7 @@ import { ThemeProvider } from 'styled-components/macro'
 import mainTheme from 'themes/main'
 
 // Providers used in test rendering
-const AllTheProviders = ({ children }: any) => {
-  return <ThemeProvider theme={mainTheme}> {children} </ThemeProvider>
-}
+const AllTheProviders = ({ children }: any) => <ThemeProvider theme={mainTheme}> {children} </ThemeProvider>
 
 // Custom testing-library/react renderer using our providers.
 const customRender = (ui: React.ReactElement, options?: any) =>

frontend/src/themes/main.ts

@@ -14,7 +14,7 @@ const mainTheme: DefaultTheme = {
     height: '5rem',
   },
   horizontalPadding: '2rem',
-  linkInternalColor: 'white',
+  linkInternalColor: 'black',
   linkExternalColor: 'blueish',
   maxWidth: '110rem',
   page: {