Implemented settings, new scan, enhanced UI/UX

lib/feature/authentication/service/userinfo.dart

@@ -0,0 +1,21 @@
+import 'dart:convert';
+
+import 'package:flutter/cupertino.dart';
+import 'package:hl_lieferservice/feature/authentication/model/user.dart';
+import 'package:http/http.dart';
+
+class UserInfoService {
+  String url;
+
+  UserInfoService({ required this.url });
+
+  Future<User> getUserinfo(String sessionId) async {
+    var headers = {
+      "Cookie": "session_id=$sessionId"
+    };
+
+    var result = await get(Uri.parse("$url/userinfo"), headers: headers);
+    debugPrint("USERINFO: ${result.body}");
+    return User.fromJson(jsonDecode(result.body));
+  }
+}