Overhaul refactor. Still things in progress

ui-old/src/api/metar.ts

@@ -0,0 +1,11 @@
+import { Metar } from './metar.types';
+import { getRequest } from '.';
+
+export async function getMetars(icaos: string[]): Promise<Metar[]> {
+  if (icaos.length == 0) {
+    return [];
+  }
+  const stationICAOs: string = icaos.map((icao) => icao).join(',');
+  const response = await getRequest(`metars`, { icaos: stationICAOs });
+  return response?.json() || [];
+}