fixed old method call for getting labels

fixed wrong datetime stamp for labels

lib/api/labels.dart

@@ -32,7 +32,7 @@ class LabelAPIService extends APIService implements LabelService {
     String params =
         query == '' ? null : '?s=' + Uri.encodeQueryComponent(query);
     return client.get('/labels$params').then(
-        (label) => convertList(label, (result) => Label.fromJson(result)));
+        (response) => convertList(response.body, (result) => Label.fromJson(result)));
   }
 
   @override

lib/models/label.dart

@@ -36,7 +36,7 @@ class Label {
         'hex_color':
             color?.value?.toRadixString(16)?.padLeft(8, '0')?.substring(2),
         'created_by': createdBy?.toJSON(),
-        'updated': updated?.millisecondsSinceEpoch,
-        'created': created?.millisecondsSinceEpoch,
+        'updated': updated?.toUtc()?.toIso8601String(),
+        'created': created?.toUtc()?.toIso8601String(),
       };
 }

lib/pages/list/task_edit.dart

@@ -1,3 +1,5 @@
+import 'dart:developer';
+
 import 'package:flutter/material.dart';
 import 'package:flutter_typeahead/flutter_typeahead.dart';
 import 'package:vikunja_app/components/datetimePicker.dart';
@@ -258,13 +260,9 @@ class _TaskEditPageState extends State<TaskEditPage> {
                           controller: _labelTypeAheadController,
                           decoration:
                               InputDecoration(labelText: 'Add a new label')),
-                      suggestionsCallback: (pattern) {
-                        return _searchLabel(pattern);
-                      },
+                      suggestionsCallback: (pattern) => _searchLabel(pattern),
                       itemBuilder: (context, suggestion) {
-                        return ListTile(
-                          title: Text(suggestion),
-                        );
+                        return Text(suggestion);
                       },
                       transitionBuilder: (context, suggestionsBox, controller) {
                         return suggestionsBox;
@@ -366,6 +364,7 @@ class _TaskEditPageState extends State<TaskEditPage> {
         .labelService
         .getAll(query: query)
         .then((labels) {
+          log("searched");
       // Only show those labels which aren't already added to the task
       labels.removeWhere((labelToRemove) => _labels.contains(labelToRemove));
       _suggestedLabels = labels;
@@ -386,6 +385,7 @@ class _TaskEditPageState extends State<TaskEditPage> {
     if (found) {
       _labelTypeAheadController.clear();
     }
+    setState(() {});
   }
 
   _createAndAddLabel(String labelTitle) {