Make footer sticky (#56)

* Make footer sticky

* Fix footer positioning

src/App.tsx

@@ -99,7 +99,7 @@ function App() {
                             </Col>
                         </Row>
                     </Header>
-                    <Content>
+                    <Content style={{ minHeight: "100vh"}}>
                         <Switch>
                             <Route
                                 exact

src/components/FooterComponent.tsx

@@ -1,12 +1,11 @@
 import React from 'react';
 import { Layout } from 'antd';
-import {Link} from 'react-router-dom';
 
 const { Footer } = Layout
 
 export default () => {
   return (
-      <Footer style={{ textAlign: 'center' }}>
+      <Footer style={{ textAlign: 'center',  bottom: "0"}}>
           Copyright © 2022 <a href="https://netbird.io">NetBird Authors</a>
       </Footer>
   );