using UK time instead of german time for requests

lib/main.dart

@@ -4,6 +4,7 @@ import 'package:provider/provider.dart';
 import 'pages/flood_station_page.dart';
 import 'pages/landing_page.dart';
 import 'services/flood_station_provider.dart';
+import 'package:timezone/data/latest.dart' as tz;
 
 void main() {
   runApp(
@@ -19,6 +20,7 @@ class MyApp extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
+    tz.initializeTimeZones();
     return MaterialApp(
       title: 'Floodwatch',
       theme: ThemeData(