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

src/services/airport.ts

@@ -0,0 +1,15 @@
+import axios from 'axios';
+import { Configuration } from './configuration';
+import { AirportOverview } from '../types';
+
+export class Airport {
+  static async all(): Promise<AirportOverview[]> {
+    return axios
+      .get<AirportOverview[]>(`${Configuration.resourceServer}/airport/all`, {
+        headers: {
+          Authorization: `Bearer ${sessionStorage.getItem('token')}`,
+        },
+      })
+      .then((response) => response.data);
+  }
+}