move some parts to services and introduce the backend communication for the airports

src/components/login.tsx

@@ -1,7 +1,7 @@
 import React, { useEffect } from 'react';
 import { Button } from 'primereact/button';
 import { Card } from 'primereact/card';
-import { Configuration } from './configuration';
+import { Configuration } from '../services';
 
 export const Login: React.FC = () => {
   // reset every old token