[dashboard] updated host to articonf1

src/demo/dashboard/lib/constants/server_constants.dart

-class ServerConstants {
-  static const String host = "https://articonf1.itec.aau.at:30401/";
-}

src/demo/dashboard/lib/querying/host_provider.dart

-import 'package:flutter/foundation.dart';
-
 class HostProvider {
-  static String _hostArticonfDebug = "https://articonf1.itec.aau.at";
   static String _hostArticonfRelease = "https://articonf1.itec.aau.at";
 
-  static String _hostManuelDebug = "https://live.nope-api.systems:81";
-  static String _hostManuelRelease = "https://live.nope-api.systems:81";
+  static String _hostManuelRelease = "https://articonf1.itec.aau.at:30470";
 
-  static String articonfHost(int port) {
-    return kReleaseMode ? "$_hostArticonfRelease:$port" : "$_hostArticonfDebug:$port";
-  }
+  static String articonfHost(int port) => "$_hostArticonfRelease:$port";
 
-  static String get manuelHost {
-    return kReleaseMode ? _hostManuelRelease : _hostManuelDebug;
-  }
+  static String get manuelHost => _hostManuelRelease;
 }

src/demo/dashboard/lib/util/loginhelper.dart

 import 'dart:convert';
 import 'dart:io';
 
-import 'package:dashboard/constants/server_constants.dart';
 import 'package:dashboard/exceptions/login_exception.dart';
+import 'package:dashboard/querying/host_provider.dart';
 import 'package:dashboard/util/user.dart';
 import 'package:localstorage/localstorage.dart';
 import 'package:logger/logger.dart';
@@ -51,7 +51,7 @@ class LoginHelper {
       "password": password,
     });
 
-    String url = "${ServerConstants.host}/api/tokens";
+    String url = "${HostProvider.articonfHost(30401)}/api/tokens";
 
     _logger.v("calling $url");